2019 YZ250F FS AN 4.1 RCT CF SSMGBM

Includes MegaBomb header Shorter 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 mass The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externally New RTS (Rapid Tuning System) Huge weight savings Massive Power gains throughout the RPM range. The 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 factory Includes spark arrestor screen insert