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.
Fitment:
KTM 350 XCF-W Base 2020
KTM 350 XCF-W Base 2021
KTM 450 XCF-W Base 2023
KTM 500 XCF-W Base 2020
KTM 500 XCF-W Base 2021