{"product_id":"fmf-q4-hex-muffler-for-kawasaki-kx450f-and-kx450x-part-042368","title":"FMF Q4 Hex Muffler for Kawasaki KX450F and KX450X – Part 042368","description":"\u003cp\u003eThe FMF Q4 Hex Muffler is designed for select Kawasaki KX450F and KX450X models, providing controlled exhaust performance with reduced sound output. Its internal baffles, chambers, and advanced sound-absorbing materials help accelerate exhaust flow while minimizing noise and limiting power loss. The result is a practical replacement or upgrade for riders who need dependable performance while meeting strict sound requirements.\u003c\/p\u003e\u003cp\u003eThis FMF muffler features a U.S. Forestry-approved spark arrestor with a maintenance-free stainless steel screen, making it suitable for off-road riding environments where spark-arresting equipment is required. The Q4 Hex Muffler is engineered for a precise fit on the listed Kawasaki applications and is identified by FMF manufacturer and vendor part number 042368.\u003c\/p\u003e\u003cp\u003eFitment includes the 2019, 2020, 2021, 2022, and 2023 Kawasaki KX450F, along with the 2021 and 2022 Kawasaki KX450X. Verify the motorcycle model and year before ordering to ensure compatibility. The FMF Q4 Hex Muffler combines efficient exhaust flow, practical sound control, and durable spark-arrestor protection in a purpose-built system for compatible Kawasaki motocross and off-road motorcycles.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInternal baffles, chambers, and sound-absorbing materials help accelerate exhaust flow with less noise and minimal power loss\u003c\/li\u003e\n\u003cli\u003eSound output is well below 96 dB on most compatible machines to help satisfy strict sound requirements\u003c\/li\u003e\n\u003cli\u003eU.S. Forestry-approved spark arrestor includes a maintenance-free stainless steel screen\u003c\/li\u003e\n\u003cli\u003eDesigned to fit 2019–2023 Kawasaki KX450F and 2021–2022 Kawasaki KX450X models\u003c\/li\u003e\n\u003cli\u003eBrand: FMF\u003c\/li\u003e\n\u003cli\u003eModel: Q4 Hex Muffler\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 042368\u003c\/li\u003e\n\u003cli\u003eVendor part number: 042368\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2019 Kawasaki KX450F\u003cbr\u003e\n2020 Kawasaki KX450F\u003cbr\u003e\n2021 Kawasaki KX450F\u003cbr\u003e\n2021 Kawasaki KX450X\u003cbr\u003e\n2022 Kawasaki KX450F\u003cbr\u003e\n2022 Kawasaki KX450X\u003cbr\u003e\n2023 Kawasaki KX450F\u003cbr\u003e\n2023 Kawasaki KX450X","brand":"FMF","offers":[{"title":"Default Title","offer_id":67551836963051,"sku":"79-4128","price":423.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/2605-5bdb81d73b9e5.jpg?v=1790728692","url":"https:\/\/ctracingservices.com\/products\/fmf-q4-hex-muffler-for-kawasaki-kx450f-and-kx450x-part-042368","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}