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FMF EXTREME and since 1973 have been about pushing the boundaries inside of the FMF Factory and the gnarliest of trails
-Lighter 20 gauge steel used for the body of the pipe
with a shorter inner core length and aluminum canister
The FMF Gnarly pipe focuses on increasing the lower RPM horsepower and torque to get you out of the toughest terrain
-Engineered to assault today's tracks and trails
Powercore 4 HEX 042309 Size:OS FMF EXTREME and since 1973When 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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