Exhaust

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you donÆt need to hear the power, just feel the power! Less sound equals more ground Power gains throughout the entire rpm range Spark arrestor included...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ 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 -...

Overall increase in power and torque Durable stainless steel and aluminum construction Space Age internal packing material for maximum longevity Internal shape of core uses Hi-Flo technology Enhanced sonic evacuation provides for higher flow and...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ 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 -...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber TechnologyÖ 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 -...

Used for a single sided exhaust system. HEADER SS MBMB/MID KTM

The ultimate power booster Improved bottom to mid-range power Less susceptible to damage than a longer header Effectively reduces sound output by as much as 1.5 dB Runs well with sound restricting mufflers. HEADER SS MGBMB/MID PIPE

Closed course use only.. HEADER TI MGBMB YZ450F

The ultimate power booster Improved bottom to mid-range power Produce the low end of a longer header and the top end of a shorter header Effectively reduces sound output by as much as 1.5 dB. HEADER TI MGBMB W/MID

The ultimate power booster featuring exclusive Ti-Metal construction Improved bottom to mid-range power Produce the low end of a longer header and the top end of a short header Less susceptible to damage than a long header Runs well with...

The ultimate power booster Improved bottom to mid-range power Produce the low end of a longer header and the top end of a short header Less susceptible to damage than a long header Effectively reduces sound output by as much as 1.5 dB Run well with...

The ultimate power booster featuring exclusive Ti-Metal construction Improved bottom to mid-range power Produce the low end of a longer header and the top end of a short header Less susceptible to damage than a long header Runs well with...