Q4 044285 HONDA-XR600R-1997 FMF EXTREME and since 1973

FMF EXTREME and since 1973 have been about pushing the boundaries inside of the FMF Factory and the gnarliest of trails

or in the open desert

-Champagne color anodized can

The Factory Fatty is reminiscent of the “works” or cone pipe once used by Factory Teams

Our best selling Turbinecore 2 uses the exclusive "Turbine Dampening System"

Q4 044285 HONDA-XR600R-1997 FMF EXTREME and since 1973FMF is the leader in high performance quiet technology and our Q4 is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you dont need to hear the power, just feel the power! Developed over years of championship off road racing Max Sound output 96dB; most models below 93dB Constructed from aircraft grade