{"product_id":"factory-4-1-rct-exhaust-silencer-10-13-yamaha-yz-250-f-fmf-044382","title":"Factory 4.1 RCT Exhaust Silencer 10-13 Yamaha YZ 250 F - FMF 044382","description":"\u003cp\u003eEngineered for superior performance, the FMF Factory 4.1 RCT Stainless Slip-On with Carbon End Cap delivers innovative FMF Resonance Chamber Technology™ internally and externally. FMF’s Factory Forward Engineering positions the muffler closer to the engine for enhanced mass centralisation and reduced crash vulnerability. Constructed exclusively from aerospace-grade materials and made in the USA, this slip-on system provides notable power gains, significant weight savings and features rapid tuning capability for competitive riders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncorporates FMF Resonance Chamber Technology™ for enhanced power delivery\u003c\/li\u003e\n\u003cli\u003eReduced overall length minimises crash susceptibility\u003c\/li\u003e\n\u003cli\u003eFactory Forward Engineering centralises mass for improved handling\u003c\/li\u003e\n\u003cli\u003eAerospace-grade construction for maximum durability\u003c\/li\u003e\n\u003cli\u003eHigh-quality aluminium muffler with carbon fibre end cap\u003c\/li\u003e\n\u003cli\u003eStainless steel mid-pipe for superior strength\u003c\/li\u003e\n\u003cli\u003eIncludes screen-type spark arrestor and 94dB quiet insert\u003c\/li\u003e\n\u003cli\u003eClosed course use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eItem ID: 044382\u003c\/li\u003e\n\u003cli\u003eType: Slip-On\u003c\/li\u003e\n\u003cli\u003eConfiguration: Single\u003c\/li\u003e\n\u003cli\u003eConstruction: Aluminium (muffler), Stainless Steel (midpipe), Carbon (end cap)\u003c\/li\u003e\n\u003cli\u003eFinish: Natural\u003c\/li\u003e\n\u003cli\u003eSpark Arrestor: Screen insert (included)\u003c\/li\u003e\n\u003cli\u003eQuiet Insert: 94dB insert (included)\u003c\/li\u003e\n\u003cli\u003eWeight: 5 lbs\u003c\/li\u003e\n\u003cli\u003eCarb Warning: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYamaha\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYZ250F (2010–2013)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FMF Exhausts","offers":[{"title":"Default Title","offer_id":62857346777418,"sku":"209308","price":567.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0897\/1249\/2874\/files\/factory-41-rct-exhaust-silencer-10-13-yamaha-yz-250-f-fmf-044382-4711384.png?v=1785703813","url":"https:\/\/aceraceshop.co.uk\/products\/factory-4-1-rct-exhaust-silencer-10-13-yamaha-yz-250-f-fmf-044382","provider":"ACE Race Shop","version":"1.0","type":"link"}