The Factory 4.1 RCT incorporates the FMF Resonance Chamber TechnologyÖ 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 exact specifications. EXHAUST ALUM 4.1 RCT MGBM
