FMF Factory 4.1 RCT Slip-On Muffler
FMF Factory 4.1 RCT Slip-On Muffler
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About this product
About this product
Elevate your motorcycle's performance and sound with the FMF Factory 4.1 RCT Slip-On Muffler. Engineered for riders seeking cutting-edge technology and a competitive edge, this FMF slip-on muffler integrates advanced features to optimize your exhaust system.
Description
The FMF Factory 4.1 RCT Slip-On Muffler is a premium upgrade designed to deliver unparalleled performance. Central to its design is the innovative FMF Resonance Chamber Technology™ (RCT), which is expertly integrated both internally and externally. This advanced engineering optimizes exhaust gas flow, resulting in improved power delivery across the RPM range and a distinctive, performance-oriented sound.
This state-of-the-art motorcycle exhaust system features a strategically shorter overall length. This design choice not only makes the muffler less susceptible to crash damage during aggressive riding but also complements FMF’s Factory Forward Engineering. By moving the muffler closer to the motor, mass is centralized, significantly enhancing the bike's handling characteristics and overall rider control. Built to withstand the rigors of off-road and track use, the Factory 4.1 RCT is constructed exclusively from aerospace-grade materials, ensuring exceptional durability and adherence to the most exacting specifications. Every FMF Factory 4.1 RCT Slip-On Muffler is proudly manufactured 100% at FMF's Southern California factory, guaranteeing superior quality and craftsmanship.
Features & Highlights
- Integrates advanced Resonance Chamber Technology (RCT) for optimized exhaust flow and enhanced power delivery.
- Features a shorter overall length design, significantly reducing susceptibility to crash damage.
- Utilizes Factory Forward Engineering to centralize mass, improving handling and rider control.
- Constructed from premium aerospace-grade materials, ensuring exceptional durability and longevity.
- Proudly manufactured 100% at FMF's state-of-the-art Southern California facility.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Specifications
045714
160.02 mm
160.02 mm
929.64 mm
Reviews


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Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.
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