FMF Factory 4.1 RCT Muffler - Aluminum 045558 1821-1633 Shock Bumper The Warm setting makes that

The Warm setting makes that the target temperature for the tire about 135F- the Hot setting makes the target about 175F

Official licensed product

sanding or filing

Designed to fit OEM primary covers on select Harley Davidson Big Twins

shockproof and easy to install with a spring base

FMF Factory 4.1 RCT Muffler - Aluminum 045558 1821-1633 Shock Bumper The Warm setting makes thatThe 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 is manufactured 100% at their