FMF Powercore 4 SA Exhaust Silencer For Yamaha YFM 350 R Raptor 2005-2013
FMF developed the PowerCore 4 to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable and compatible with every style of riding. Yamaha YFM 350 R Raptor 2005-2013.