{"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","url":"https:\/\/garamoto.com\/products\/fmf-factory-4-1-full-system-yamaha-wr250f-2007-2013-yamaha-wr450f-2007-2011-2-more-4-stroke","provider":"GARA","version":"1.0","type":"link"}