FMFFactory 4.1 Rct Slip-on Muffler Raw

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)