Description

If you’re running off-road and need to meet sound regulations without sacrificing performance, the FMF Q4 Muffler delivers race-proven quiet power that doesn’t compromise your engine’s potential. Engineered through years of championship off-road racing, this muffler uses advanced baffle and chamber placement to absorb sound efficiently while keeping weight minimal—so you gain power-to-weight benefits alongside compliance. The twin-stage core design extends packing life and maintains consistent performance across extended riding sessions.