Built to create smooth, tractable power to help in the toughest conditions Smooth power curve throughout the RPM range Larger diameter titanium canister for more tunability and longer lasting...

Race tested, smooth power curve throughout RPM range Large diameter canister for longer packing life Lighter than stock Utilizes exclusive FMF "Turbine Dampening System" Compatible...

Less sound equals more ground Meets FIM World Enduro sound regulations Power gains throughout the entire rpm range Spark arrestor included Pounds lighter than stock Rugged design for off-road...

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...

The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and most importantly, track and trail proven unrestricted...

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...

The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures strength, durability and most importantly, track and trail proven unrestricted...

Developed over years of championship off-road racing Twin-stage core design for lower sound output and extended life of packing material Comes standard with spark arrestor Compatible...

Developed over years of championship off-road racing Twin-stage core design for lower sound output and extended life of packing material Comes standard with spark arrestor Compatible...

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...