MUFFLER FAC4.1RCT ALUM/CF pw50 billet throttle tube Space age internal packing material

Space age internal packing material for maximum longevity

250 EXC-F 12-15

Improved cornering traction with more biting edges

For all vintage and classic models that do not have any hardened valve seats

MUFFLER FAC4.1RCT ALUM/CF pw50 billet throttle tube Space age internal packing materialFactory 4. 1 RCT Slip On Muffler The Factory 4. 1 RCT incorporates FMF's Resonance Chamber Technology both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their 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 their exacting specifications and