FMF Racing® Mini PowerCore 4 Slip-On Muffler 040080
Fits 2000-2007 Yamaha TT-R90
The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header. Its pounds lighter than stock and you will swear the motor has been bored and stroked with the first twist of the throttle.
Features:
- 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
- Available with a screen-type spark arrestor that does not interrupt exhaust flow or performance
Finish:
- Silver
Fitment:
- 2000-2007 Yamaha TT-R90
