FMF Racing Yamaha YZ450F 23-25 AL Factory 4.1 RCT w/ R. Carbon Cap Comp Sys w/SS MB Header/Mid Pipe

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.