{"product_id":"fmf-045667-q4-hex-slip-on-muffler-beta-350-rr-moto-house-mx","title":"FMF Q4 Hex Slip-On Muffler 045667 - Beta 350 \/ 390 \/ 430 \/ 480 RR 2020-2026","description":"\u003ch2\u003e\u003cstrong\u003eFMF Q4 Hex Slip-On Muffler 045667 - Beta 350 \/ 390 \/ 430 \/ 480 RR 2020-2026\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe FMF \u003cstrong\u003eQ4 Hex Slip-On Muffler\u003c\/strong\u003e employs intricate chambers, advanced baffles, and proprietary multistage packing material to deliver lower sound output without sacrificing performance. With the Q4, you get powerful gains throughout the entire rpm range while maintaining a quieter ride.\u003c\/p\u003e\n\u003cp\u003eDesigned significantly lighter than stock, this rugged off-road exhaust features an aluminum muffler canister, stainless steel mid-pipe, and stainless steel end cap. It also comes equipped with an integrated spark arrestor for trail and off-road compliance.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Q4 Hex\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEmploys intricate chambers, baffles, and proprietary multistage packing material for reduced sound[cite: 1].\u003c\/li\u003e\n\u003cli\u003eDelivers power gains throughout the entire rpm range[cite: 1].\u003c\/li\u003e\n\u003cli\u003eSignificantly lighter than stock factory exhaust systems[cite: 1].\u003c\/li\u003e\n\u003cli\u003eFeatures a rugged design built specifically for off-road endurance[cite: 1].\u003c\/li\u003e\n\u003cli\u003eIncludes a built-in spark arrestor[cite: 1].\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/p\u003e\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eVehicle Brand\u003c\/th\u003e\n\u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e390 RR Race Edition 4T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025-2026\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e350 RR X-Pro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025-2026\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e390 RR X-Pro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025-2026\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e430 RR X-Pro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025-2026\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e480 RR X-Pro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e350 RR S 4T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e390 RR S 4T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e430 RR S 4T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021, 2025\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e350 RR 4T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021, 2025\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e390 RR 4T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021, 2025\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e430 RR 4T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021, 2025\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e480 RR 4T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e350 RR-Race Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e390 RR-Race Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e430 RR-Race Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e480 RR-Race Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2023\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e350 RR-S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2023\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e390 RR-S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2023\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e430 RR-S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020, 2023-2024\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e350 RR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020, 2023-2024\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e390 RR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020, 2023-2024\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e430 RR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020, 2023-2024\u003c\/td\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e480 RR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: Does the Q4 Hex muffler come with a spark arrestor?\u003c\/b\u003e\u003cbr\u003eA: Yes, a spark arrestor is included[cite: 1].\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What materials are used in the construction of this muffler?\u003c\/b\u003e\u003cbr\u003eA: It features an aluminum muffler canister, stainless steel pipe, and a stainless steel end cap[cite: 1].\u003c\/p\u003e\n\u003ch3\u003eExpert Pro-Tip\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e When maintaining a quiet off-road exhaust like the Q4, inspect and repack the multistage internal packing material every 30-40 hours of trail riding to preserve optimal decibel reduction and crisp throttle response.\u003c\/p\u003e\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/beta-350-rr-performance-parts-and-accessories-moto-house-mx\"\u003eBeta 350 RR Performance Parts \u0026amp; Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/beta-4-stroke-dirt-bike-for-upgrade-superior-performance-parts-moto-house-mx\"\u003eBeta 4-Stroke Performance Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eMotorcycle Tools \u0026amp; Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAbout Moto-House MX\u003c\/h3\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions\u003c\/strong\u003e - Your premier powersports source with great customer service and lightning-fast shipping straight to your door.\u003c\/i\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"FMF Q4 Hex Slip-On Muffler 045667 - Beta 350 \/ 390 \/ 430 \/ 480 RR 2020-2026\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"FMF\"\n  },\n  \"sku\": \"045667\",\n  \"mpn\": \"045667\",\n  \"description\": \"FMF 045667 Q4 Hex Slip-On Muffler for Beta 350\/390\/430\/480 RR 2020-2026. Quiet off-road spark arrestor exhaust. Fast shipping from Moto-House MX.\"\n}\n\u003c\/script\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":42354286919763,"sku":"045667","price":474.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-q4-hex-slip-on-muffler-045667-beta-350-rr-390-rr-480-rr-and-430-rr-768063.jpg?v=1735343299","url":"https:\/\/motohousemx.com\/products\/fmf-045667-q4-hex-slip-on-muffler-beta-350-rr-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}