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Completely redesigned for all late model applications
you can choose between a moto or supercross version
-FMF Racing’s Tru-Flo stamping process ensures a perfect fit and optimum performance
1 is FMF Racing's premier performance exhaust
Powercore 4 HEX 042309 Size:OS Completely redesigned for all lateWhen designing the PowerCore 4 HEX, 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. Overall increase in power and torque. Durable stainless steel and aluminum construction. Space Age internal packing material for maximum longevity. Internal shape of core
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