{"product_id":"fmf-factory-4-1-muffler-042394-with-resonance-chamber-technology-for-enhanced-performance","title":"FMF Factory 4.1 Muffler 042394 with Resonance Chamber Technology for Enhanced Performance","description":"\u003cp\u003e\u003c\/p\u003e\u003cp\u003eThe FMF Factory 4.1 Muffler with part number 042394 is engineered to deliver optimal exhaust flow and power output for dirt bikes and off-road motorcycles. Featuring FMF's patented Resonance Chamber Technology (RCT), this muffler integrates a specialized core shape that effectively reduces noise levels while maintaining maximum engine performance. Internal ducts within the RCT system increase the internal volume of the chambers, resulting in improved exhaust flow that enhances power across the entire rpm range. This design ensures your motorcycle performs efficiently whether you're racing or trail riding. The muffler's construction emphasizes durability and crash resistance, thanks to FMF's Factory Forward Engineering which centralizes mass for better handling and less susceptibility to impact damage. Installation is straightforward with an innovative rear end cap that allows quick setup of tuning tip inserts or a spark arrestor by simply removing four screws. The FMF Factory 4.1 Muffler complies with AMA and FIM sound standards, making it suitable for competitive racing and recreational riding. Included with the muffler is a QuietCore 94dB insert, providing noise reduction without compromising performance, and a spark arrestor for added safety and environmental compliance. Made in the U.S.A., this exhaust system is a reliable upgrade for riders seeking increased power, reduced noise, and durable construction in their motorcycle exhaust system.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eResonance Chamber Technology (RCT): Patented core shape reduces noise while maintaining maximum power output\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eInternal Ducts: Increase internal volume for improved exhaust flow and power gains across all RPMs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFactory Forward Engineering: Centralized mass design reduces crash damage and improves handling\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEasy Installation: Rear end cap allows quick fitting of tuning tip inserts or spark arrestor with four screws\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSound Compliance: Meets AMA and FIM sound requirements for competitive and recreational use\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eQuietCore Insert Included: 94dB noise reduction for quieter operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSpark Arrestor Included: Ensures safe and environmentally compliant exhaust emissions\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMade in U.S.A.: High-quality construction and durability\u003c\/li\u003e\u003c\/ul\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":45974572236997,"sku":"18212035","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/7891\/4355\/files\/2105461.png?v=1773889367","url":"https:\/\/btqllc.com\/products\/fmf-factory-4-1-muffler-042394-with-resonance-chamber-technology-for-enhanced-performance","provider":"Bikes Trikes and Quads LLC","version":"1.0","type":"link"}