FMF Racing Factory 4.1 RCT Slip-On 42394 Massive power gains throughout the RPM range. Huge weight savings. New RTS (Rapid Tuning System). FMF uses the highest-quality proprietary blend of alloy-grade titanium.
- Constructed from only aerospace grade materials that meet FMF exact specifications
- Shorter overall length is less susceptible to crash damage and is complementary to FMF's Factory Forward Engineering
- Shorter length design moves the muffler closer to the motor and centralizes mass
- Greater canister volume reduces sound and increases packing life
- Race team tested and approved
- 100% manufactured in Southern California