FMF Racing KTM 350-450SXF/XCF 18-22/HQV FC/FX350-450 19-22/GGMC/EX350F-450F 21-23 AL F4.1 SO w/C Cap - 045628

The 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 our Southern California factory.