{"product_id":"fmf-042382-slip-on-muffler-kawasaki-klx140-moto-house-mx","title":"FMF Mini Factory 4.1 Slip-On Muffler 042382 — Kawasaki KLX140 \/ KLX140R 2008-2025","description":"\u003ch1\u003e\u003cstrong\u003eFMF Mini Factory 4.1 Slip-On Muffler 042382 — Kawasaki KLX140 \/ KLX140R 2008-2025\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Mini Factory 4.1 Slip-On Muffler\u003c\/strong\u003e is the ultimate performance upgrade for riders looking to unlock the full potential of their Kawasaki KLX140. Engineered for those who demand maximum power and weight savings, this system delivers an immediate performance boost throughout the entire RPM range, transforming your ride on the trail or the track.\u003c\/p\u003e\n\u003cp\u003eBuilt with FMF’s signature \u003cstrong\u003eFactory Forward Engineering\u003c\/strong\u003e, this muffler centralizes mass to significantly improve the handling and agility of your motorcycle. Crafted from premium American materials, the Factory 4.1 series utilizes exclusive Chamber Core technology to maintain high performance while meeting strict sound requirements. It is the lightest option available, ensuring your bike stays nimble while gaining the competitive edge you need.\u003c\/p\u003e\n\u003ch3\u003eTop Features: FMF Mini Factory 4.1 Slip-On Muffler\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExclusive Chamber Core technology for superior power gains\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering design centralizes mass for better handling\u003c\/li\u003e\n\u003cli\u003eConstructed from high-grade, premium American materials\u003c\/li\u003e\n\u003cli\u003eLightweight design significantly reduces overall bike weight\u003c\/li\u003e\n\u003cli\u003eEasily customizable with performance tuning inserts and spark arrestor modules\u003c\/li\u003e\n\u003cli\u003eMeets AMA sound requirements on most models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2025\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKLX140R L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2025\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKLX140R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2021-2025\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKLX140R F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2017-2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKLX140G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2008-2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKLX140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2008-2020\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKawasaki\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eKLX140L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will I need to re-jet my carburetor after installing this slip-on?\u003c\/strong\u003e\u003cbr\u003eA: In most cases, installing a high-flow exhaust system like the FMF Factory 4.1 will change your air\/fuel ratio. We strongly recommend checking your jetting and making adjustments to ensure the engine runs at peak performance and doesn't run too lean.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I add a spark arrestor to this muffler?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The FMF Factory 4.1 is designed to be modular. You can easily add a spark arrestor module, which is essential if you are riding in protected public lands or state forests.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When installing a new slip-on, always use a high-temp silicone sealant on the slip-joint connection between the muffler and the headpipe. This ensures a leak-free seal. A small exhaust leak here can cause decel popping and performance issues that often get mistaken for jetting problems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-klx140-klx140l-klx140g-klx140r-f-and-klx140r-moto-house-mini-pit-bike-upgrades-engine-mods-and-accessories-performance-headquarters\"\u003eKawasaki KLX140 Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/moto-house-mini-pit-bike-performance-headquarters\"\u003eKawasaki Mini\/Pit Bike Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eEssential Motorcycle Shop Tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\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. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":40775193165907,"sku":"042382","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/fmf-aluminum-mini-factory-41-rct-042382-slip-on-stainless-end-cap-2008-2023-kawasaki-klx140r-klx140l-and-klx140-948672.jpg?v=1735341999","url":"https:\/\/motohousemx.com\/products\/fmf-042382-slip-on-muffler-kawasaki-klx140-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}