PowerCore 4

We developed the PowerCore4 to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strength.

PowerLine

The Powerline utility exhaust gives your ATV more useable power throughout the powerband while keeping the sound level down in a muffler that requires no maintenance and in most cases is considerably lighter than stock.

Select your application below for more info

Titanium 4

The Titanium 4 racing exhaust system will give the ATV rider the huge weight savings of titanium with an overall horsepower and torque gain. All mufflers are available in a natural titanium finish or in a blue anodized finish. FMF’s Titanium 4 is fully tunable with modular end caps that allow for easy changes to shape the powerband of the machine and alter the sound level.

*** Titanium 4 mufflers must be combined with a FMF mid-pipe ***

Factory4.1 SL (slip-on)

The Factory 4.1 is FMF Racing's premier ATV performance exhaust. It is guaranteed to produce more horsepower throughout the entire RPM range. If performance is your priority, the Factory 4.1 is the exhaust for you.

Factory4.1 System

The Factory 4.1 exhaust system with the Powerbomb header is FMF's premier exhaust system. This system is perfect for the track or dunes, and is used by factory teams such as KTM, Epic Can-Am and Rath Racing. The Powerbomb header is made of durable stainless steel to withstand any abuse.

Q4

FMF is the leader in high performance quiet technology and our Q4 is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!