STAINLESS STEEL ALUM. FACT-4.1 RCT W/R.CARBON CAP FULL SYSTEM 045715 YAMAHA-YZ450FX-2020 The Powercore 2 silencer provides

The Powercore 2 silencer provides a strong performance edge for any 2-stroke machine and the performance flow end cap and front stinger are stainless steel for unbeatable durability and an unmatched look

Did you know a freshly packed silencer or muffler actually restores power

Dyno and track tested for every application

-Horsepower gains throughout RPM range

-Massive Power gains throughout the RPM range

STAINLESS STEEL ALUM. FACT-4.1 RCT W/R.CARBON CAP FULL SYSTEM 045715 YAMAHA-YZ450FX-2020 The Powercore 2 silencer providesThe 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