{"product_id":"fmf-q4-hex-s-a-slip-on-beta-350rr-2020-2026-beta-390rr-2020-2026-2-more-4-stroke","title":"FMF Q4 — S\/A Slip-On — Beta 350RR (2020-2026), Beta 390RR (2020-2026) + 2 more","description":"\u003cp\u003eThe Q4 HEX is FMF's quietest 4-stroke slip-on — a hexagonal canister with sound-attenuating internal architecture and integrated spark arrestor. Built for noise-restricted tracks and U.S. Forest Service trails where you need quiet, low-decibel operation without losing performance feel.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eQuietest FMF 4-stroke slip-on\u003c\/li\u003e\n  \u003cli\u003eU.S. Forest Service approved spark arrestor\u003c\/li\u003e\n  \u003cli\u003eHexagonal aluminum canister\u003c\/li\u003e\n  \u003cli\u003eStainless steel endcaps\u003c\/li\u003e\n  \u003cli\u003eIdeal for noise-restricted tracks and off-road\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\u003eBeta 350RR (2020-2026)\u003c\/li\u003e\n  \u003cli\u003eBeta 390RR (2020-2026)\u003c\/li\u003e\n  \u003cli\u003eBeta 430RR (2020-2026)\u003c\/li\u003e\n  \u003cli\u003eBeta 480RR (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":48020674248858,"sku":"357881","price":404.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/357881_1744749948.jpg?v=1778739065","url":"https:\/\/garamoto.com\/products\/fmf-q4-hex-s-a-slip-on-beta-350rr-2020-2026-beta-390rr-2020-2026-2-more-4-stroke","provider":"GARA","version":"1.0","type":"link"}