{"product_id":"fmf-factory-4-1-rct-slip-on-muffler-aluminum-carbon-cap-109db","title":"FMF Factory 4.1 RCT Slip-On Muffler Aluminum Carbon Cap 109dB","description":"\u003cp\u003eExperience a new level of performance and sound with the FMF Factory 4.1 RCT Slip-On Muffler. Engineered for enthusiasts, this advanced exhaust system delivers significant power gains across the entire RPM range while maintaining compliance with critical sound regulations.\u003c\/p\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFMF Factory 4.1 RCT Slip-On Muffler\u003c\/strong\u003e is a pinnacle of motorcycle exhaust technology, meticulously designed to elevate your riding experience. Central to its performance is the innovative \u003cstrong\u003eResonance Chamber Technology (RCT)\u003c\/strong\u003e, which utilizes a patented core shape to effectively lower decibel levels without compromising raw power output. This sophisticated design incorporates internal ducts within the chambers, significantly increasing internal volume for optimized exhaust flow. The result is a noticeable surge in power across the entire powerband, from low-end torque to top-end horsepower, making it an ideal performance slip-on for competitive riders and serious enthusiasts alike.\u003c\/p\u003e\n\u003cp\u003eFurther enhancing its functionality, FMF's exclusive Factory Forward Engineering strategically centralizes mass, contributing to improved handling and a reduced susceptibility to crash damage – a crucial advantage in aggressive off-road conditions. The innovative rear end cap simplifies maintenance and customization, allowing for quick installation of tuning tip inserts or the integrated spark arrestor with just four screws. This versatile FMF Factory 4.1 RCT Slip-On Muffler is compatible with both your stock header and FMF's aftermarket headers, offering flexible upgrade paths. It comes complete with a QuietCore 94 dB insert and an integrated spark arrestor, ensuring it meets AMA and FIM sound requirements (excluding 2025 FIM regulations), providing a compliant yet powerful \u003cstrong\u003emotorcycle exhaust system\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Resonance Chamber Technology (RCT):\u003c\/strong\u003e Features a patented core design that expertly lowers sound output while maximizing power delivery across the RPM range, providing a compliant yet high-performance motorcycle exhaust system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Exhaust Flow:\u003c\/strong\u003e Internal ducts within the RCT system's chambers boost internal volume, leading to enhanced exhaust gas flow and significant power gains throughout the entire powerband.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Forward Engineering:\u003c\/strong\u003e Strategically centralizes mass for improved bike handling and increased resilience against crash damage, essential for demanding riding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Friendly End Cap Design:\u003c\/strong\u003e An innovative rear end cap allows for quick and simple installation of tuning tip inserts or the included spark arrestor, requiring the removal of only four screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Header Compatibility:\u003c\/strong\u003e Engineered to seamlessly integrate with either your motorcycle's stock header or any FMF aftermarket header, offering flexible upgrade options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Sound Compliance:\u003c\/strong\u003e Includes a QuietCore 94 dB insert and a spark arrestor, ensuring the system meets current AMA and FIM sound requirements (Note: Will not pass 2025 FIM regulations).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Construction:\u003c\/strong\u003e Crafted from durable aluminum with a sleek carbon fiber end cap, offering both robust performance and a distinctive aesthetic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Slip-On Muffler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnology:\u003c\/strong\u003e Resonance Chamber Technology (RCT), Factory Forward Engineering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction Material:\u003c\/strong\u003e Aluminum body with Carbon Fiber End Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound Level (Operating):\u003c\/strong\u003e 109 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Inserts:\u003c\/strong\u003e QuietCore 94 dB Insert\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Arrestor:\u003c\/strong\u003e Integrated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound Compliance:\u003c\/strong\u003e Meets AMA and FIM sound requirements (pre-2025)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eImportant to Know\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2025 FIM Sound Regulation:\u003c\/strong\u003e This muffler will not pass the 2025 FIM sound regulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader Compatibility:\u003c\/strong\u003e Designed for use with either a stock header or an FMF aftermarket header (header not included).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":64330310746442,"sku":"18212351","price":11354.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/1c6875b1a986a10076cdc5df3ad9619e.webp?v=1794338673","url":"https:\/\/partsdenmark.se\/products\/fmf-factory-4-1-rct-slip-on-muffler-aluminum-carbon-cap-109db","provider":"Parts Denmark","version":"1.0","type":"link"}