FMF Racing

Hi-Flo end cap boosts all-around performance Computer designed and dyno-tested for every 4-stroke application

Replacement exhaust mounts Long strap mount with rings. Not for minis.

Includes end cap, 3/16 stainless steel rivets, and strap mounts to secure end cap to canister

Replacement sleeves for worn out mid-pipes

Kit includes carbon fiber (RCT) end cap, 3/16" stainless steel rivets, and strap mounts to secure end cap to canister

Kit includes carbon fiber (RCT) end cap, 3/16" stainless steel rivets, and strap mounts to s

Kit includes carbon fiber (RCT) end cap, 3/16" stainless steel rivets, and strap mounts to secure end cap to canister

Kit includes carbon fiber (RCT) end cap, 3/16" stainless steel rivets, and strap mounts to secure end cap to canister

Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end capsThe lightest mufflers availableSuperior power and performance - horsepower improved throughout the...

The Q4 employs intricate chambers, baffles and proprietary multistage packing materialWith the Q4 you don’t need to hear the power, just feel the power!Less sound equals more groundPower gains...

RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power outputInternal ducts in the chambers of the RCT system increase internal volume...

RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power outputInternal ducts in the chambers of the RCT system increase internal volume...