FMF

Hi-Flo end cap boosts all-around performance Computer designed and dyno-tested for every 4-stroke application Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power...

Hi-Flo end cap boosts all-around performance Computer designed and dyno-tested for every 4-stroke application Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power...

Hi-Flo end cap boosts all-around performance Computer designed and dyno-tested for every 4-stroke application Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power...

Features a Hi-Flo stainless steel core and formed end caps Aircraft grade aluminum canister You will swear the motor has been bored and stroked with the first twist of the throttle Pounds lighter...

Features a Hi-Flo stainless steel core and formed end caps Aircraft grade aluminum canister You will swear the motor has been bored and stroked with the first twist of the throttle Pounds lighter...

Features a Hi-Flo stainless steel core and formed end caps Aircraft grade aluminum canister You will swear the motor has been bored and stroked with the first twist of the throttle Pounds lighter...

Features a Hi-Flo stainless steel core and formed end caps Aircraft grade aluminum canister You will swear the motor has been bored and stroked with the first twist of the throttle Pounds lighter...

The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini Features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable...

The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini Features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable...

The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini Features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable...

The latest version of the Powercore 4 design incorporates a hi-flow core which has more surface area to absorb more sound while flowing more exhaustConstructed with an extruded aluminum canister, a...

Owens-Corning fiberglass replacement packing keeps silencers performing as they're meant to. FMF 2 STROKE PACKING