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Fits Big Twin 1965-1988 & Sportster 1967-1980
Fits Cams # 1
NO Groove in outer Race
• Does not fit 2023+ CVO Road Glide or CVO Street Glide models with inverted forks
yet engineered for outstanding filtration
FMF Racing Powercore 4 Aluminum Slip-On Muffler w/Stainless End Cap for Yamaha YZ450F 03-05/WR450F 03-06 Fits Big Twin 1965-1988 &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
US$ 40.00
US$ 165.00
US$ 105.47