FMF 044464 - 044464 - FMF Factory 4.1 RCT Slip-On Exhaust Silencer - Yamaha WRF450 2020-2

Features: The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ 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 - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet their exacting specifications and is manufactured 100% at their Southern California factory. Massive Power gains throughout the RPM range.. Huge weight savings. RTS (Rapid Tuning System).