MUFFLER TI 4.1 RCT YAM Billy Bolt This awesome all in one

This awesome all in one kit also contains one of the No Toil exhaust plugs

YZ450F 14-20

Barcode: 046221150018

Air Box Covers 8474000007

Designed for OEM tank

MUFFLER TI 4.1 RCT YAM Billy Bolt This awesome all in oneFactory 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