FMF Factory 4.1 RCT Exhaust Aluminum System 044456

The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externallyShorter overall length that is less susceptible to crash damage and complementary to FMF’s Factory Forward Engineering – moving the muffler closer to the motor to centralize massThe Factory 4.1 RCT is constructed from only aerospace grade materials that meet FMF’s exacting specifications and is manufactured 100% at their Southern California factoryMassive Power gains throughout the RPM range.Huge weight savingsNew RTS (Rapid Tuning System)Includes MegaBomb headerIncludes spark arrestor screen insertFitment:View Parts Application LookupOff-Road Motorcycle2019-2024 Yamaha YZ 250 F2020-2023 Yamaha YZ 250 FX