FMF Racing Powercore 4 Aluminum Slip-On Muffler w/Stainless End Cap for Yamaha YZ450F 03-05/WR450F 03-06

FMF PowerCore 4 Slip-On Exhaust Yamaha YZ450F / WR450F

When designing the PowerCore 4 Exhaust, FMF took a hard look at their top of the line mufflers to produce race-inspired performance at a more economical price. The end result is a quality muffler that delivers improved torque, increased horsepower and rugged durability all at a price that won't break the bank.

Features:

• Increase in power and torque through entire RPM range
• Durable stainless steel and aluminum construction
• High quality internal packing material for maximum longevity
• Removable spark arrestor included
• Can be used with FMF or Stock OEM Header
• Weight: 5.4 lbs
• 100% made in the USA