FMF Racing Yamaha YZ450F 14-17/YZ450FX 16-18/WR450F 16-18 Powercore 4 Hex Muffler

The PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strength. Aluminum performance muffler with durable stainless steel components. Completely redesigned for all late model applications. Removable spark arrestor included. Aluminum slip-on developed to increase the horsepower and torque throughout the entire power band.

This Part Fits:

Year	Make	Model	Submodel
2016-2018	Yamaha	WR450F	Base
2014-2017	Yamaha	YZ450F	Base
2016-2018	Yamaha	YZ450FX	Base