{"product_id":"fmf-042394-factory-41-rct-slip-on-muffler-kawasaki-kx250-kx250x-moto-house-mx","title":"FMF Factory 4.1 RCT Slip-On Muffler (Aluminum\/Carbon Fiber) 042394 - Kawasaki KX250 \/ KX250X 2021-2024","description":"\u003ch2\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler (Aluminum\/Carbon Fiber) 042394 - Kawasaki KX250 \/ KX250X 2021-2024\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cdiv style=\"background-color:#fdecea; border:1px solid #f5c2c0; border-left:5px solid #d93025; border-radius:6px; padding:10px 14px; margin:12px 0; box-sizing:border-box; width:100%; max-width:100%; word-wrap:break-word; overflow-wrap:break-word; font-size:15px; line-height:1.5;\"\u003e\n\u003cstrong style=\"color:#b3261e;\"\u003ePlease Note:\u003c\/strong\u003e \u003cspan style=\"color:#5f1a15;\"\u003eCompatible with stock header or FMF header.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT\u003c\/strong\u003e slip-on muffler delivers championship-proven performance and advanced exhaust technology to your Kawasaki KX250 or KX250X. Utilizing Resonance Chamber Technology, this system features a patented core shape that reduces decibel levels while preserving maximum engine power output.\u003c\/p\u003e\n\u003cp\u003eEngineered with Factory Forward Engineering to centralize mass and improve crash resilience, the muffler combines a lightweight aluminum canister with a durable carbon fiber end cap. Internal chamber ducts expand internal volume to optimize gas flow, resulting in measurable power gains across the entire powerband.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRCT (Resonance Chamber Technology) patented core shape lowers decibels while maintaining peak power.\u003c\/li\u003e\n\u003cli\u003eInternal chamber ducts increase volume to optimize exhaust flow and boost power throughout the RPM range.\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralizes mass and provides greater crash resilience.\u003c\/li\u003e\n\u003cli\u003eInnovative rear end cap allows quick installation of tuning inserts or the included spark arrestor.\u003c\/li\u003e\n\u003cli\u003eIncludes a pre-installed QuietCore 94 dB insert and spark arrestor for versatility on the track or trail.\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\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\u003e2021-2024\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eKX250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2024\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eKX250X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: Is a spark arrestor included with this muffler?\u003c\/b\u003e\u003cbr\u003eA: Yes, a spark arrestor is included in the muffler along with a QuietCore 94 dB insert.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Does this slip-on require a special header, or will it fit my stock setup?\u003c\/b\u003e\u003cbr\u003eA: This muffler is fully compatible with either your stock header or an aftermarket FMF header.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e When servicing your slip-on muffler, inspect the packing material regularly and repack it according to manufacturer intervals to maintain optimal decibel levels and preserve peak exhaust scavenging efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eKawasaki 4-Stroke Performance Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-kx250f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eKawasaki KX250F Performance Upgrades\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\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\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","brand":"FMF","offers":[{"title":"Default Title","offer_id":40775123796051,"sku":"042394","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-factory-41-rct-042394-slip-on-carbon-fiber-end-cap-2021-2023-kawasaki-kx250f-and-kx250x-491655.jpg?v=1735341941","url":"https:\/\/motohousemx.com\/products\/fmf-042394-factory-41-rct-slip-on-muffler-kawasaki-kx250-kx250x-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}