Computer designed and dyno-tested for every 4-stroke application
Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power
A stainless steel mid-pipe mates to the computer-designed rear can for lightweight durability
Round perforated steel inner cores make for optimum flow, using hi-flo technology
FMF’s exclusive cross-weave internal packing provides longevity and maximum sound dispersion
Elliptical aluminum can offers strategic sizing for superior performance
Optional Quiet Core insert will provide a decrease in sound level if desired
Features a screen-type spark arrestor that does not interrupt exhaust flow or performance
Note: P/Ns 1821-0688, FMF045011, 1821-0689 are to be used with stock head pipe.
Note: P/Ns 1821-1603, 1821-1539 include left-side rear number plate by UFO, designed for use with a single muffle, P/N 0520-1300 (available separately).
