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 SX-F Base 2019
KTM 350 SX-F Base 2020
KTM 350 SX-F Base 2021
KTM 350 XC-F Base 2019
KTM 350 XC-F Base 2020
KTM 350 XC-F Base 2021
KTM 450 SX-F Base 2019
KTM 450 SX-F Base 2020
KTM 450 SX-F Base 2021
KTM 450 SX-F Factory Edition Base 2018
KTM 450 SX-F Factory Edition Base 2019
KTM 450 SX-F Factory Edition Base 2020
KTM 450 XC-F Base 2019
KTM 450 XC-F Base 2020
KTM 450 XC-F Base 2021