Powercore 4 HEX 042309 Size:OS Completely redesigned for all late

Completely redesigned for all late model applications

FMF is the leader in high performance quiet technology and our Q4 is the next evolution in off road exhaust

you can choose between a moto or supercross version

a linear powerband and increased over-rev all add up to a pipe that every mini rider will benefit from

more low-end

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