Powercore 2.1 Silencer AluminiumPOWERCORE 2.1 SILENCERSThe all new PowerCore 2.1 silencer is proof FMF is totally committed to 2-stroke progression. FMF loves 2-strokes, they ride 2-strokes, and they are devoted to delivering superior power to the 2-stroke faithful.Race-tested, smooth power curve throughout the RPM range.Engineered to assault today's tracks and trailsLarger diameter canister for more tunability and longer lasting packing life.Delivers a crisp, notable sound.Lighter than stock.Optimally designed to complement performance of FMF pipes; works and fits FMF or stock.