{"product_id":"factory-4-1-rct-exhaust-silencer-09-11-kawasaki-kx-450-f-fmf-042291","title":"Factory 4.1 RCT Exhaust Silencer 09-11 Kawasaki KX 450 F - FMF 042291","description":"\u003cbody\u003e\r\n  \r\n\u003cp\u003eThe Factory 4.1 RCT Stainless SL Slip-On with Carbon End Cap delivers advanced performance with FMF’s Resonance Chamber Technology™, optimising power output and mass centralisation for professional-level racing. Built from top-tier aerospace grade materials at FMF’s Southern California facility, this slip-on exhaust offers substantial weight savings, improved crash resilience and the latest Rapid Tuning System for seamless adjustments. Its precise engineering ensures reduced overall length and an optimally positioned muffler for enhanced handling and durability.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eIncorporates both internal and external FMF Resonance Chamber Technology™\u003c\/li\u003e\r\n\u003cli\u003eShorter, forward-positioned muffler design for centralised mass and reduced crash vulnerability\u003c\/li\u003e\r\n\u003cli\u003eConstructed from aerospace grade aluminium and stainless steel with carbon fibre end cap\u003c\/li\u003e\r\n\u003cli\u003eMassive power gains across the RPM range\u003c\/li\u003e\r\n\u003cli\u003eSignificant weight reduction over stock systems\u003c\/li\u003e\r\n\u003cli\u003eIncludes Rapid Tuning System (RTS) for quick adjustments\u003c\/li\u003e\r\n\u003cli\u003eNatural aluminium finish with carbon end cap for strength and style\u003c\/li\u003e\r\n\u003cli\u003eScreen-type spark arrestor insert and 94dB quiet insert included\u003c\/li\u003e\r\n\u003cli\u003eManufactured 100% in FMF’s Southern California factory\u003c\/li\u003e\r\n\u003cli\u003eFor closed course competition use only\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eItem ID: 042291\u003c\/li\u003e\r\n\u003cli\u003eType: Slip-On\u003c\/li\u003e\r\n\u003cli\u003eConfiguration: Single\u003c\/li\u003e\r\n\u003cli\u003eConstruction: Aluminium\u003c\/li\u003e\r\n\u003cli\u003eFinish: Natural\u003c\/li\u003e\r\n\u003cli\u003eMidpipe: Stainless steel\u003c\/li\u003e\r\n\u003cli\u003eEndcap: Carbon fibre\u003c\/li\u003e\r\n\u003cli\u003eSpark Arrestor: Screen insert (included)\u003c\/li\u003e\r\n\u003cli\u003eQuiet Insert: 94dB insert (included)\u003c\/li\u003e\r\n\u003cli\u003eWeight: 5 lbs (approximate)\u003c\/li\u003e\r\n\u003cli\u003eCarb Warning: No\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eKawasaki\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eKX450F (2009–2011)\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n  \r\n\u003cdiv style=\"margin-top:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eFDY Performance – Engineered for riders who demand more.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt FDY Performance, we deliver precision-engineered motorcycle parts trusted by riders across the UK and beyond. Every component is tested for reliability, durability, and peak performance so you can ride harder, longer, and with confidence.\u003c\/p\u003e\n\u003cp\u003eWe’re not just a brand — we’re a movement built by riders, for riders. Whether you’re chasing podiums, upgrading your build, or maintaining your machine, FDY Performance keeps you on the road and at the top of your game.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e📞 07765534854 | ✉️ fdy@fdyperformance.com | 🌐 www.fdyperformance.com\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size:13px; color:#555;\"\u003eFollow FDY Performance for new releases, expert tuning tips, and exclusive upgrades.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/body\u003e","brand":"FDY Performance","offers":[{"title":"Default","offer_id":55987292176732,"sku":"06-1754.FMF.FAC","price":567.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/6982\/0252\/files\/stock8014_1.jpg?v=1763314269","url":"https:\/\/fdyperformance.com\/products\/factory-4-1-rct-exhaust-silencer-09-11-kawasaki-kx-450-f-fmf-042291","provider":"FDY performance Ltd","version":"1.0","type":"link"}