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:
Honda CRF450R Base 2021
Honda CRF450R Base 2022
Honda CRF450R Base 2023
Honda CRF450RX Base 2021
Honda CRF450RX Base 2022
Honda CRF450RX Base 2023