FMF Racing

Hi-Flo end cap boosts all-around performanceComputer designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...

The Q series features advanced engineering to precisely locate baffles and chambers to absorb soundLess mass to enhance power-to-weight ratioQuiet power with minimal sacrifice for performanceQ4...

Developed over years of championship off-road racingTwin-stage core design for lower sound output and extended life of packing materialComes standard with spark arrestorFits stock and PowerBomb header

Hi-Flo end cap boosts all-around performanceComputer designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...

Hi-Flo end cap boosts all-around performanceComputer designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...

Developed over years of championship off-road racingTwin-stage core design for lower sound output and extended life of packing materialComes standard with spark arrestorFits stock and PowerBomb header

Hi-Flo end cap boosts all-around performanceComputer designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...

Hi-Flo end cap boosts all-around performanceComputer designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...

Hi-Flo end cap boosts all-around performanceComputer designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases powerA...

Hi-Flo end cap boosts all-around performanceComputer designed and dyno-tested for every 4-stroke applicationEnhanced sonic evacuation delivers a higher flow of exhaust gases, which increases...

RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power outputInternal ducts in the chambers of the RCT system increase internal volume...

Developed over years of championship off-road racingTwin-stage core design for lower sound output and extended life of packing materialComes standard with spark arrestorFits stock and PowerBomb header