MUFFLER FACT 4.1RCT ALUM W/CAR Knee Brace The flame design aids in

The flame design aids in the cooling and cleaning of the contact surface

KX250 01-08

YZ250F 19-22

Breathable fabric

MUFFLER FACT 4.1RCT ALUM W/CAR Knee Brace The flame design aids inFactory 4. 1 RCT Slip On Muffler FACTORY 4. 1 RCT SLIP ON MUFFLERS RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage Innovative