{"title":"Exhaust: Full System","description":"\u003cp\u003eFull exhaust systems replace the headers back to the muffler for the biggest weight savings and power gains, usually paired with a fuel tune.\u003c\/p\u003e","products":[{"product_id":"fmf-factory-4-1-full-system-honda-crf150r-2007-2026-4-stroke-1","title":"FMF Factory 4.1 — Full System — Honda CRF150R (2007-2026), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 is FMF's race-bred 4-stroke full system — the foundation of the Factory 4.1 RCT lineup. Lighter than stock with FMF's race-tested tuning across the RPM range.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLighter than stock 4-stroke system\u003c\/li\u003e\n  \u003cli\u003eFMF race-developed tuning\u003c\/li\u003e\n  \u003cli\u003eStainless steel construction\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda CRF150R (2007-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020640071834,"sku":"357581","price":449.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357581_1744663946_4f403249-5685-4647-a2f2-50a03b8bdcc3.jpg?v=1778741296"},{"product_id":"fmf-factory-4-1-rct-titanium-full-system-honda-crf450r-2013-2016-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Full System — Honda CRF450R (2013-2016), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in full titanium construction. Aerospace-grade titanium mid-pipe and muffler body with FMF's Resonance Chamber Technology for the lightest, highest-end 4.1 RCT setup. Same shorter length, RTS, and quieter-than-stock tuning as the rest of the 4.1 RCT family.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFull aerospace-grade titanium construction\u003c\/li\u003e\n  \u003cli\u003eLightest 4.1 RCT configuration\u003c\/li\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS)\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda CRF450R (2013-2016)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020640333978,"sku":"357587","price":584.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357587_1744737965.jpg?v=1778738829"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-honda-crf450x-2005-2017-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Honda CRF450X (2005-2017), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda CRF450X (2005-2017)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020640497818,"sku":"357589","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357589_1744738054.jpg?v=1778738831"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-honda-crf450x-2019-2026-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Honda CRF450X (2019-2026), 4 — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda CRF450X (2019-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020641251482,"sku":"357603","price":674.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357603_1744738146.jpg?v=1778738838"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-honda-crf450r-2021-2026-honda-crf450rx-2021-2026-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Honda CRF450R (2021-2026), Honda CRF450RX","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda CRF450R (2021-2026)\u003c\/li\u003e\n  \u003cli\u003eHonda CRF450RX (2021-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020642103450,"sku":"357615","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357615_1744738279.jpg?v=1778738846"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-honda-crf450r-2021-2026-honda-crf450rx-2021-2026-4-stroke-1","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Honda CRF450R (2021-2026), Honda — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda CRF450R (2021-2026)\u003c\/li\u003e\n  \u003cli\u003eHonda CRF450RX (2021-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020642234522,"sku":"357616","price":809.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357616_1744738314_29ee1b62-c38f-497b-bfeb-348b548c5ab2.jpg?v=1778741305"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-honda-crf250r-2022-2024-honda-crf250rx-2022-2024-4-stroke-1","title":"FMF Factory 4.1 — RCT Stainless Full System — Honda CRF250R (2022-2024), Honda CRF250RX","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda CRF250R (2022-2024)\u003c\/li\u003e\n  \u003cli\u003eHonda CRF250RX (2022-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020643283098,"sku":"357623","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357623_1744809604_b6e71421-8a13-42fb-9f17-a1dccdaf9075.jpg?v=1778741309"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-honda-crf250r-2022-2024-honda-crf250rx-2022-2024-4-stroke-1","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Honda CRF250R (2022-2024), Honda — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda CRF250R (2022-2024)\u003c\/li\u003e\n  \u003cli\u003eHonda CRF250RX (2022-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020643381402,"sku":"357624","price":809.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357624_1744809722_4dfeb574-6cea-4c7d-8029-93265f27b611.jpg?v=1778741310"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-honda-crf250r-2025-2026-honda-crf250rx-2025-2026-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Honda CRF250R (2025-2026), Honda CRF250RX","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda CRF250R (2025-2026)\u003c\/li\u003e\n  \u003cli\u003eHonda CRF250RX (2025-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020644364442,"sku":"357631","price":607.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357631_1744815465.jpg?v=1778738861"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-honda-crf250r-2025-2026-honda-crf250rx-2025-2026-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Honda CRF250R (2025-2026), Honda — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHonda CRF250R (2025-2026)\u003c\/li\u003e\n  \u003cli\u003eHonda CRF250RX (2025-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020644429978,"sku":"357632","price":809.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357632_1744815620.jpg?v=1778738862"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-kawasaki-kx250f-2009-2016-4-stroke-1","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Kawasaki KX250F (2009-2016), 4 — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX250F (2009-2016)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020645380250,"sku":"357645","price":674.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357645_1744816565_3cb1b608-72d0-4e9b-977a-516a8d70c22c.jpg?v=1778741313"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-kawasaki-kx450f-2009-2011-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Kawasaki KX450F (2009-2011), 4 — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX450F (2009-2011)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020645445786,"sku":"357646","price":674.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357646_1744816703.jpg?v=1778738872"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-kawasaki-kx450f-2012-2015-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Kawasaki KX450F (2012-2015), 4 — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX450F (2012-2015)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020645642394,"sku":"357648","price":674.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357648_1744816816.jpg?v=1778738874"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-kawasaki-kx250f-2009-2016-4-stroke-1","title":"FMF Factory 4.1 — RCT Stainless Full System — Kawasaki KX250F (2009-2016), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX250F (2009-2016)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020645740698,"sku":"357649","price":539.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357649_1744817031_5d1b1f2d-9a4d-4f67-a3a4-780f0ca21ab0.jpg?v=1778741315"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-kawasaki-kx450f-2009-2011-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Kawasaki KX450F (2009-2011), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX450F (2009-2011)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020645806234,"sku":"357650","price":539.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357650_1744818660.jpg?v=1778738876"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-kawasaki-kx450f-2012-2015-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Kawasaki KX450F (2012-2015), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX450F (2012-2015)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020645871770,"sku":"357651","price":539.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357651_1744818844.jpg?v=1778738877"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-kawasaki-kx450f-2016-2018-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Kawasaki KX450F (2016-2018), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX450F (2016-2018)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020646887578,"sku":"357664","price":539.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357664_1744819292.jpg?v=1778738889"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-kawasaki-kx450f-2019-2023-kawasaki-kx450x-2019-2023-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Kawasaki KX450F (2019-2023), Kawasaki — (see","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX450F (2019-2023)\u003c\/li\u003e\n  \u003cli\u003eKawasaki KX450X (2019-2023)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020647444634,"sku":"357672","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357672_1744819400.jpg?v=1778738895"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-kawasaki-kx450f-2019-2023-kawasaki-kx450x-2019-2023-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Kawasaki KX450F (2019-2023) — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX450F (2019-2023)\u003c\/li\u003e\n  \u003cli\u003eKawasaki KX450X (2019-2023)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020647510170,"sku":"357673","price":674.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357673_1744819605.jpg?v=1778738896"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-kawasaki-kx250f-2017-2020-4-stroke-1","title":"FMF Factory 4.1 — RCT Stainless Full System — Kawasaki KX250F (2017-2020), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX250F (2017-2020)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020647805082,"sku":"357676","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357676_1744819884_763a5d03-3892-4b03-b089-353235f09294.jpg?v=1778741323"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-kawasaki-kx250f-2017-2020-4-stroke-1","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Kawasaki KX250F (2017-2020), 4 — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX250F (2017-2020)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020647936154,"sku":"357677","price":674.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357677_1744819944_852eca38-46a9-44e4-8f79-4a2fafa839e7.jpg?v=1778741324"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-kawasaki-kx250f-2021-2024-kawasaki-kx250x-2021-2024-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Kawasaki KX250F (2021-2024), Kawasaki — (see","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX250F (2021-2024)\u003c\/li\u003e\n  \u003cli\u003eKawasaki KX250X (2021-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020648755354,"sku":"357691","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357691_1744820528.jpg?v=1778738909"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-kawasaki-kx250f-2021-2024-kawasaki-kx250x-2021-2024-4-stroke-1","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Kawasaki KX250F (2021-2024) — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX250F (2021-2024)\u003c\/li\u003e\n  \u003cli\u003eKawasaki KX250X (2021-2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020648886426,"sku":"357692","price":674.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357692_1744823988_0e0e44ea-5101-467e-be23-55b7bb31eddc.jpg?v=1778741329"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-kawasaki-kx450f-2024-2026-kawasaki-kx450x-2024-2026-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Kawasaki KX450F (2024-2026), Kawasaki — (see","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX450F (2024-2026)\u003c\/li\u003e\n  \u003cli\u003eKawasaki KX450X (2024-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020649476250,"sku":"357699","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357699_1744824403.jpg?v=1778738917"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-kawasaki-kx450f-2024-2026-kawasaki-kx450x-2024-2026-4-stroke-1","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Kawasaki KX450F (2024-2026) — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX450F (2024-2026)\u003c\/li\u003e\n  \u003cli\u003eKawasaki KX450X (2024-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020649607322,"sku":"357700","price":809.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357700_1744824577_a8c2bde8-9157-49b3-bccc-0c6a7dc904f7.jpg?v=1778741331"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-kawasaki-kx250f-2025-2026-kawasaki-kx250x-2025-2026-4-stroke-1","title":"FMF Factory 4.1 — RCT Stainless Full System — Kawasaki KX250F (2025-2026), Kawasaki — (see","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX250F (2025-2026)\u003c\/li\u003e\n  \u003cli\u003eKawasaki KX250X (2025-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020650360986,"sku":"357707","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357707_1744825404_7ff7f782-d07a-42e6-a579-270b6684fb8c.jpg?v=1778741332"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-kawasaki-kx250f-2025-2026-kawasaki-kx250x-2025-2026-4-stroke-1","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Kawasaki KX250F (2025-2026) — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KX250F (2025-2026)\u003c\/li\u003e\n  \u003cli\u003eKawasaki KX250X (2025-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020650557594,"sku":"357708","price":809.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357708_1744829043_02b3a6fc-aecc-462a-9929-6642e7200446.jpg?v=1778741333"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-suzuki-rmz250-2010-2012-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Suzuki RMZ250 (2010-2012), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuzuki RMZ250 (2010-2012)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020652687514,"sku":"357720","price":472.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357720_1744829449.jpg?v=1778738936"},{"product_id":"fmf-factory-4-1-rct-aluminum-full-system-suzuki-rmz250-2010-2012-4-stroke","title":"FMF Factory 4.1 — RCT Aluminum Full System — Suzuki RMZ250 (2010-2012), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in aluminum construction — the budget-friendly entry into FMF's flagship 4-stroke system. Same Resonance Chamber Technology, Rapid Tuning System, and shorter overall length as the rest of the 4.1 RCT lineup, with an aluminum mid-pipe and muffler.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003eAluminum construction — entry tier of 4.1 RCT\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS)\u003c\/li\u003e\n  \u003cli\u003eShorter overall length than stock\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuzuki RMZ250 (2010-2012)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020652785818,"sku":"357721","price":449.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357721_1744829510.jpg?v=1778738937"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-suzuki-rmz450-2018-2026-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Suzuki RMZ450 (2018-2026), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuzuki RMZ450 (2018-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020653113498,"sku":"357723","price":539.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357723_1744829622.jpg?v=1778738938"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-suzuki-rmz450-2018-2026-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Suzuki RMZ450 (2018-2026), 4 — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuzuki RMZ450 (2018-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020653244570,"sku":"357724","price":674.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357724_1744829691.jpg?v=1778738939"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-suzuki-rmz250-2019-2026-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Suzuki RMZ250 (2019-2026), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuzuki RMZ250 (2019-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020654096538,"sku":"357729","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357729_1745002720.jpg?v=1778738944"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-suzuki-rmz250-2019-2026-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Suzuki RMZ250 (2019-2026), 4 — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuzuki RMZ250 (2019-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020654325914,"sku":"357730","price":674.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357730_1744833842.jpg?v=1778738945"},{"product_id":"fmf-factory-4-1-full-system-yamaha-raptor-700-2006-2023-4-stroke","title":"FMF Factory 4.1 — Full System — Yamaha RAPTOR 700 (2006-2023), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 is FMF's race-bred 4-stroke full system — the foundation of the Factory 4.1 RCT lineup. Lighter than stock with FMF's race-tested tuning across the RPM range.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLighter than stock 4-stroke system\u003c\/li\u003e\n  \u003cli\u003eFMF race-developed tuning\u003c\/li\u003e\n  \u003cli\u003eStainless steel construction\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha RAPTOR 700 (2006-2023)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020657406106,"sku":"357746","price":494.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357746_1744731798.jpg?v=1778738957"},{"product_id":"fmf-factory-4-1-full-system-yamaha-wr250f-2007-2013-yamaha-wr450f-2007-2011-2-more-4-stroke","title":"FMF Factory 4.1 — Full System — Yamaha WR250F (2007-2013), Yamaha WR450F (2007-2011) + 2","description":"\u003cp\u003eThe Factory 4.1 is FMF's race-bred 4-stroke full system — the foundation of the Factory 4.1 RCT lineup. Lighter than stock with FMF's race-tested tuning across the RPM range.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLighter than stock 4-stroke system\u003c\/li\u003e\n  \u003cli\u003eFMF race-developed tuning\u003c\/li\u003e\n  \u003cli\u003eStainless steel construction\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha WR250F (2007-2013)\u003c\/li\u003e\n  \u003cli\u003eYamaha WR450F (2007-2011)\u003c\/li\u003e\n  \u003cli\u003eYamaha YZ250F (2006-2009)\u003c\/li\u003e\n  \u003cli\u003eYamaha YZ450F (2006-2009)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020659470490,"sku":"357753","price":449.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357753_1744737541.jpg?v=1778738964"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-yamaha-yz250f-2010-2013-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Yamaha YZ250F (2010-2013), 4 — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha YZ250F (2010-2013)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020660781210,"sku":"357764","price":674.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357764_1744833949.jpg?v=1778738970"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-yamaha-yz250f-2010-2013-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Yamaha YZ250F (2010-2013), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha YZ250F (2010-2013)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020661010586,"sku":"357765","price":539.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357765_1744834587.jpg?v=1778738971"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-yamaha-yfz450r-2009-2026-yamaha-yfz450x-2010-2011-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Yamaha YFZ450R (2009-2026), Yamaha","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha YFZ450R (2009-2026)\u003c\/li\u003e\n  \u003cli\u003eYamaha YFZ450X (2010-2011)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020661862554,"sku":"357768","price":607.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357768_1744834831.jpg?v=1778738974"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-yamaha-wr250f-2015-2019-yamaha-yz250f-2014-2018-1-more-4-stroke-1","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Yamaha WR250F (2015-2019), Yamaha","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha WR250F (2015-2019)\u003c\/li\u003e\n  \u003cli\u003eYamaha YZ250F (2014-2018)\u003c\/li\u003e\n  \u003cli\u003eYamaha YZ250FX (2015-2019)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020662550682,"sku":"357773","price":719.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357773_1744835071_8cb9de8d-5cdd-4f3d-9024-160959efc960.jpg?v=1778741343"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-yamaha-wr450f-2019-2026-yamaha-yz450f-2018-2026-1-more-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Yamaha WR450F (2019-2026), Yamaha YZ450F — (see","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha WR450F (2019-2026)\u003c\/li\u003e\n  \u003cli\u003eYamaha YZ450F (2018-2026)\u003c\/li\u003e\n  \u003cli\u003eYamaha YZ450FX (2019-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020663402650,"sku":"357782","price":584.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357782_1744912082.jpg?v=1778738987"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-yamaha-wr250f-2023-2025-yamaha-yz250f-2019-2026-1-more-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Yamaha WR250F (2023-2025), Yamaha YZ250F — (see","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha WR250F (2023-2025)\u003c\/li\u003e\n  \u003cli\u003eYamaha YZ250F (2019-2026)\u003c\/li\u003e\n  \u003cli\u003eYamaha YZ250FX (2020-2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020663894170,"sku":"357789","price":584.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357789_1744911934.jpg?v=1778738992"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-yamaha-wr450f-2020-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Yamaha WR450F (2020), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha WR450F (2020)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020664287386,"sku":"357796","price":607.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357796_1744911290.jpg?v=1778738997"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-yamaha-wr450f-2020-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Yamaha WR450F (2020), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha WR450F (2020)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020664352922,"sku":"357797","price":719.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357797_1744911193.jpg?v=1778738998"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-yamaha-wr250f-2020-2021-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Yamaha WR250F (2020-2021), 4-Stroke","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha WR250F (2020-2021)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020664582298,"sku":"357801","price":539.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357801_1744911102.jpg?v=1778739001"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-yamaha-wr250f-2020-2021-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Yamaha WR250F (2020-2021), 4 — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYamaha WR250F (2020-2021)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020664680602,"sku":"357802","price":719.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357802_1744910961.jpg?v=1778739001"},{"product_id":"fmf-factory-4-1-rct-aluminum-full-system-ktm-350-exc-f-2012-2016-ktm-500-exc-2012-2016-4-stroke","title":"FMF Factory 4.1 — RCT Aluminum Full System — KTM 350 EXC-F (2012-2016), KTM 500 EXC — (see","description":"\u003cp\u003eThe Factory 4.1 RCT in aluminum construction — the budget-friendly entry into FMF's flagship 4-stroke system. Same Resonance Chamber Technology, Rapid Tuning System, and shorter overall length as the rest of the 4.1 RCT lineup, with an aluminum mid-pipe and muffler.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003eAluminum construction — entry tier of 4.1 RCT\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS)\u003c\/li\u003e\n  \u003cli\u003eShorter overall length than stock\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKTM 350 EXC-F (2012-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 500 EXC (2012-2016)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020665401498,"sku":"357818","price":449.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357818_1744910480.jpg?v=1778739010"},{"product_id":"fmf-factory-4-1-rct-stainless-full-system-husaberg-fe-250-2013-2014-husaberg-fe-350-2013-2014-29-more-4-stroke","title":"FMF Factory 4.1 — RCT Stainless Full System — Husaberg FE 250 (2013-2014), Husaberg FE — (see","description":"\u003cp\u003eThe Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT)\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel construction — rugged and corrosion-resistant\u003c\/li\u003e\n  \u003cli\u003eShorter overall length for mass centralization\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) — sound insert and spark arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHusaberg FE 250 (2013-2014)\u003c\/li\u003e\n  \u003cli\u003eHusaberg FE 350 (2013-2014)\u003c\/li\u003e\n  \u003cli\u003eHusaberg FE501 (2013-2014)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE 250 (2014-2016)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE 350 (2014-2016)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE 450 (2015-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 250 SX-F (2009-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 250 XC-F (2009-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 250 XCF-W (2009-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 350 SX-F (2011-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 350 XC-F (2011-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 350 XCF-W (2012-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 400 XCW (2009-2010)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 EXC (2009-2011)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 EXCR (2008)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 SMR (2013)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 SX-F (2007-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 SXF FACTORY EDITION (2012-2014)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XC-F (2013-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XC-W (2012-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XCF (2009)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XCRW (2008)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XCW (2009-2010)\u003c\/li\u003e\n  \u003cli\u003eKTM 500 XC-W (2013-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 500 XCF-W (2012-2014)\u003c\/li\u003e\n  \u003cli\u003eKTM 505 SXF (2008)\u003c\/li\u003e\n  \u003cli\u003eKTM 505 XCF (2008-2009)\u003c\/li\u003e\n  \u003cli\u003eKTM 530 EXC (2009-2011)\u003c\/li\u003e\n  \u003cli\u003eKTM 530 EXCR (2008)\u003c\/li\u003e\n  \u003cli\u003eKTM 530 XCRW (2008)\u003c\/li\u003e\n  \u003cli\u003eKTM 530 XCW (2009-2010)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020666024090,"sku":"357830","price":494.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357830_1744910387.jpg?v=1778739018"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-husaberg-fe-250-2013-2014-husaberg-fe-350-2013-2014-30-more-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Husaberg FE 250 (2013-2014) — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHusaberg FE 250 (2013-2014)\u003c\/li\u003e\n  \u003cli\u003eHusaberg FE 350 (2013-2014)\u003c\/li\u003e\n  \u003cli\u003eHusaberg FE501 (2013-2014)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE 250 (2014-2016)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE 350 (2014-2016)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE 450 (2015-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 250 SX-F (2009-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 250 XC-F (2009-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 250 XCF-W (2009-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 350 SX-F (2011-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 350 XC-F (2011-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 350 XCF-W (2012-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 400 XCW (2009-2010)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 EXC (2009-2011)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 EXCR (2008)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 SMR (2013)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 SX-F (2007-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 SXF FACTORY EDITION (2012-2014)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XC-F (2013-2015)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XC-W (2012-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XCF (2009)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XCRW (2008)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XCW (2009-2010)\u003c\/li\u003e\n  \u003cli\u003eKTM 500 EXC (2012-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 500 XC-W (2013-2016)\u003c\/li\u003e\n  \u003cli\u003eKTM 500 XCF-W (2012-2014)\u003c\/li\u003e\n  \u003cli\u003eKTM 505 SXF (2008)\u003c\/li\u003e\n  \u003cli\u003eKTM 505 XCF (2008-2009)\u003c\/li\u003e\n  \u003cli\u003eKTM 530 EXC (2009-2011)\u003c\/li\u003e\n  \u003cli\u003eKTM 530 EXCR (2008)\u003c\/li\u003e\n  \u003cli\u003eKTM 530 XCRW (2008)\u003c\/li\u003e\n  \u003cli\u003eKTM 530 XCW (2009-2010)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020666122394,"sku":"357831","price":584.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357831_1744910079.jpg?v=1778739018"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-husqvarna-fc-250-2014-2015-husqvarna-fc-350-2015-2-more-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Husqvarna FC 250 (2014-2015) — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHusqvarna FC 250 (2014-2015)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FC 350 (2015)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FC 450 (2014-2015)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE501 (2014-2016)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020666187930,"sku":"357832","price":584.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357832_1744909969.jpg?v=1778739020"},{"product_id":"fmf-factory-4-1-rct-titanium-anodized-full-system-husqvarna-fc-250-2016-2018-husqvarna-fc-350-2016-2018-20-more-4-stroke","title":"FMF Factory 4.1 — RCT Titanium Anodized Full System — Husqvarna FC 250 (2016-2018) — (see","description":"\u003cp\u003eThe Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFMF Resonance Chamber Technology (RCT) for power + quieter operation\u003c\/li\u003e\n  \u003cli\u003eAerospace-grade titanium construction with carbon end cap\u003c\/li\u003e\n  \u003cli\u003eShorter overall length — less crash-damage exposure, mass centralized\u003c\/li\u003e\n  \u003cli\u003eRapid Tuning System (RTS) for easy insert and spark-arrestor swaps\u003c\/li\u003e\n  \u003cli\u003eQuieter than stock with huge weight savings\u003c\/li\u003e\n  \u003cli\u003eManufactured 100% in Southern California\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 4-stroke bike specific — fits the following models:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHusqvarna FC 250 (2016-2018)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FC 350 (2016-2018)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FC 450 (2016-2018)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE 250 (2017-2019)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE 350 (2017-2019)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE 450 (2017-2019)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FE501 (2017-2019)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FX 350 (2017-2018)\u003c\/li\u003e\n  \u003cli\u003eHusqvarna FX 450 (2017-2018)\u003c\/li\u003e\n  \u003cli\u003eKTM 250 EXC-F (2017-2019)\u003c\/li\u003e\n  \u003cli\u003eKTM 250 SX-F (2016-2018)\u003c\/li\u003e\n  \u003cli\u003eKTM 250 SX-F FACTORY EDITION (2015-2017)\u003c\/li\u003e\n  \u003cli\u003eKTM 250 XC-F (2016-2018)\u003c\/li\u003e\n  \u003cli\u003eKTM 350 EXC-F (2017-2019)\u003c\/li\u003e\n  \u003cli\u003eKTM 350 SX-F (2016-2018)\u003c\/li\u003e\n  \u003cli\u003eKTM 350 XC-F (2016-2018)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 EXC-F (2018-2019)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 EXC-F SIX DAYS (2017-2019)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 SX-F (2016-2018)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 SX-F FACTORY EDITION (2015-2017)\u003c\/li\u003e\n  \u003cli\u003eKTM 450 XC-F (2016-2018)\u003c\/li\u003e\n  \u003cli\u003eKTM 500 EXC-F (2017-2019)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":48020666613914,"sku":"357837","price":584.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357837_1744909775.jpg?v=1778739025"}],"url":"https:\/\/garamoto.com\/collections\/moto-exhaust-full-system.oembed","provider":"GARA","version":"1.0","type":"link"}