FMF

The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology? both internally and externallyIn addition, FMF achieves a shorter overall length that is less susceptible to crash damage and...

The Q4 employs intricate chambers, baffles and proprietary multistage packing materialWith the Q4 you don?t need to hear the power, just feel the power!Less sound equals more groundPower gains...

FMF's Fatty Gold Series pipe broadens the powerband and provides a healthy power increase everywhereImproved throttle response, a linear powerband and enhanced over-rev all add up to a pipe that...

Replacement rear cone cap

Includes end cap, 3/16 stainless steel rivets, and strap mounts to secure end cap to canister

Replacement universal heat shield for FMF head pipes

The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology? both internally and externallyIn addition, FMF achieves a shorter overall length that is less susceptible to crash damage and...

Overall increase in power and torqueDurable stainless steel and aluminum constructionSpace Age internal packing material for maximum longevityInternal shape of core uses Hi-Flo technologyEnhanced...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology? both internally and externallyIn addition, FMF achieves a shorter overall length that is less susceptible to crash damage and...

The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology? both internally and externallyIn addition, FMF achieves a shorter overall length that is less susceptible to crash damage and...

Used for a single sided exhaust system Husqvarna -- FE 501 -- (2021, 2020, 2021, 2022); KTM -- 500 XCF-W -- (2020, 2021, 2022)

The ultimate power boosterImproved bottom to mid-range powerLess susceptible to damage than a longer headerEffectively reduces sound output by as much as 1.5 dBRuns well with sound restricting...