Powercore 4 HEX 045707 Size:OS a linear powerband and increased

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

Classic FMF Style

73% Cotton / 13% Poly 10% Spandex / 4% Spandex

Dyno and track tested for every application

Its pounds lighter than stock and you will swear the motor has been bored and stroked with the first twist of the throttle

Powercore 4 HEX 045707 Size:OS a linear powerband and increasedWhen 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