FMF Racing® Aluminum/Stainless Steel PowerCore 4 Slip-On Muffler

2006-2009 Yamaha YZ450F, 2007-2014 Yamaha WR250F, 2007-2011 Yamaha WR450F, & 2006-2009 Yamaha YZ250F

When designing the PowerCore4, we looked at our top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won’t break the bank.

Features:

• Developed 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

• Aluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strength

• Removable spark arrestor included

Finish:

• Aluminum/Stainless Steel

Fitment:

• 2006-2009 Yamaha YZ450F

• 2007-2014 Yamaha WR250F

• 2007-2011 Yamaha WR450F

• 2006-2009 Yamaha YZ250F