{"product_id":"fmf-044489-factory-4-1-rct-exhaust-system-yamaha-yz450f-wr450f-moto-house-mx","title":"FMF Factory 4.1 RCT Exhaust System (Megabomb\/Titanium\/Carbon End Cap) 044489 — Yamaha YZ450F \/ WR450F \/ YZ450FX 2023-2026","description":"\u003ch2\u003e\u003cstrong\u003eFMF Factory 4.1 RCT Exhaust System (Titanium \/ Carbon End Cap) 044489 — Yamaha YZ450F \/ WR450F \/ YZ450FX 2023-2026\u003c\/strong\u003e\u003c\/h2\u003e\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;\"\u003eClosed course use only.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Exhaust System\u003c\/strong\u003e incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally to maximize power output.\u003c\/p\u003e\n\u003cp\u003eEngineered with a shorter overall length that reduces susceptibility to crash damage, it supports Factory Forward Engineering by moving the muffler closer to the motor to centralize mass. Constructed entirely from aerospace-grade materials meeting exacting specifications, it is manufactured 100% at the Southern California facility.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Factory 4.1 RCT Exhaust System\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncorporates FMF Resonance Chamber Technology™ both internally and externally for enhanced performance.\u003c\/li\u003e\n\u003cli\u003eShorter overall length resists crash damage and centralizes mass by shifting the muffler closer to the engine.\u003c\/li\u003e\n\u003cli\u003eConstructed exclusively from aerospace-grade materials meeting exacting specifications.\u003c\/li\u003e\n\u003cli\u003eManufactured 100% at the Southern California factory.\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\u003e2024-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450FX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F\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: Is this exhaust system street legal?\u003c\/b\u003e\u003cbr\u003eA: No, it is designated for closed course use only.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Where is the Factory 4.1 RCT manufactured?\u003c\/b\u003e\u003cbr\u003eA: It is manufactured 100% at FMF's Southern California factory.\u003c\/p\u003e\n\u003ch3\u003eExpert Pro-Tip\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e When mounting a full titanium exhaust system, use anti-seize on the slip joints to prevent galling, and leave all header flange nuts and mid-pipe hardware loose until the entire system aligns naturally to avoid stress cracking.\u003c\/p\u003e\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz450f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eYamaha YZ450F 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\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003eMotorcycle Chemicals \u0026amp; Maintenance\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","brand":"FMF","offers":[{"title":"Default Title","offer_id":46108221046867,"sku":"044489","price":1237.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/6151795.png?v=1788319461","url":"https:\/\/motohousemx.com\/products\/fmf-044489-factory-4-1-rct-exhaust-system-yamaha-yz450f-wr450f-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}