

FMF RACING
FMF FACTORY 4.1 RCT YAMAHA
In stock · stock as of Sep 3, 2026
Shipping calculated at checkout
30-day returns on unused parts
Details
Developed with Championship winning Factory STAR Racing Yamaha, the Factory 4.1 Titanium Systems delivers unmatched power, reduced weight and the signature FMF Factory look. The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory. Available in Blue Anodized Titanium Muffler with Blue Carbon Fiber End Cap Massive Power gains throughout the RPM range Lightweight design New RTS (Rapid Tuning System) Megabomb header technology Hi-flo performance Core Improved throttle response Direct bolt-on installation FMF uses the highest quality proprietary blend of alloy grade titanium made especially to our standards
Specs
- Vehicle
- Offroad
- Weight Lb
- 11.85
- Shipping Class
- standard
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