Yamaha YZ450F (2018) FMF STAINLESS STEEL ALLUM. FACT-4.1 RCT W / R. CABIN CAP FULL SYSTEM
The Factory 4.1 RCT contains the latest in FMF Resonance Chamber Technology ™, both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to collisions and complements our Factory Forward Engineering - bringing the silencer closer to the engine to centralize the mass. The Factory 4.1 RCT is made of materials of the aerospace class that meet our high specifications and is 100% produced in our factory in Southern California.