Fmf Powercore 4 Hex Slip-on Muffler – Fits Yamaha Yz250fx, Yz250f &

Designed to fit Yamaha YZ250FX, YZ250F, and WR250F models from 2014 to 2017, the PowerCore 4 HEX provides an overall boost in torque and power. The internal shape of the core promotes sonic evacuation, which results in higher flow and better engine performance.