Silencieux FMF PC4 YZ450F/YZ250F

POWERCORE 4 SPARK ARRESTOR SLIP-ON MUFFLER


Hi-Flo end cap boosts all-around performance

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