Exhaust

RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains...

Spark arrestor screen insert included 94dB insert included For closed course competition use only. MUFFLER ANODIZED TITANIUM FACTORY 4.1 RCT CARBON CAP KX450F

Massive Power gains throughout the RPM range New RTS (Rapid Tuning System) Huge weight savings. MUFFLER ANTI FACT 4.1 CRF

The lightest mufflers available Superior power and performance - horsepower improved throughout the rpm range Feature exclusive proprietary Chamber Core technology Factory Forward Engineering centralizes mass, improves handling Made from premium quality...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...