FMF Exhaust

FMF was in the exhaust business when single-shock and water-cooled engines were huge innovations. Over 35 years later, FMF is still innovating in the era of the aluminum chassis and electronic fuel injection. Over the decades, FMF exhaust pipes have earned the trust and respect of dirt bike riders and motocross racers around the world. FMF also makes exhaust systems for ATVs and street bikes, in addition to replacement exhaust parts and fashionable moto apparel.

Started in 1973 by owner and founder Don Emler in a garage in Hawthorne, California, FMF (Flying Machine Factory) was one of the first aftermarket manufacturers of motorcycle exhausts. Emler was a professional motocross racer who gained a reputation for being a motorcycle mechanical prodigy. FMF exhausts achieved national notoriety in 1974 when they powered Marty Smith to the AMA National 125 Championship. In 1988, the release of chrome-plated FMF exhaust pipes was a breakthrough hit. Then in the ‘90s when noise pollution became a hot issue, FMF exhaust products expanded to include silencers. Now, FMF exhausts and silencers are among the most popular for dirt bikes and ATVs, including PowerBomb headers and PowerCore Slip-On Silencers. Every FMF exhaust is built by hand from start to finish in the USA.

FMF travels to over 100 events a year and sponsors dozens of amateur and professional racers. As title sponsor of the KTM off-road factory team, FMF exhausts have powered WORCS champions Kurt Caselli and Mike Brown, GNCC XC2 champion Kailub Russell and National Enduro champions Charlie Mullins and Russell Bobbitt. Keeping you stocked with the gear of champions, Motorcycle Superstore offers a complete selection of FMF exhaust pipes, silencers and full FMF exhaust systems for your bike. Modify your ride with an FMF exhaust or silencer and aim your flying machine for new heights.

Featured FMF Exhausts

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FMFQ4 Slip-On Exhaust
$260.99 - $584.99 MSRP $289.95 - $649.95
(39 Reviews)
FMF Q4 Slip-On Exhaust FMF is the leader in high performance quiet technology and FMF's Q4 is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multist...

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FMFPower Core 4 Slip-On Exhaust
$179.99 - $539.99 MSRP $199.95 - $599.95
(65 Reviews)
FMF Power Core 4 Slip-On ExhaustRace inspired price point muffler made for maximum power output Aircraft quality extruded aluminum canister with stainless steel components Space Age internal packing ...

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FMFPower Core 2 Silencer
$89.99 - $116.99 MSRP $99.95 - $129.95
(10 Reviews)
FMF Power Core 2 Silencer The Power Core 2 is the measure which others aim for. With its lightweight extruded aluminum oval canister mated to a perforated core, this silencer is above the competition....

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FMFFactory 4.1 Slip-On Exhaust with Titanium Mid-Pipe
$359.99 - $719.99 MSRP $399.95 - $799.99
(1 Reviews)
FMF Factory 4.1 Slip-On Exhaust with Titanium Mid-Pipe Titanium slip-on muffler with titanium midpipe; same muffler as Factory 4.1 system. Available in natural titanium or blue anodized finish. Fits...

Latest Reviews

Stoo (Missoula)

Fit
Quality
Sound
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Performance

I wike it a wot.

Good shit! It did quiet my bike down though. I recommend it to you and all your family members. Even crazy Uncle John. Your old header can be used to make a piccolo. That's about it. Gotta go ride!

Lennon (Katy)

Fit
Quality
Installation
Recommend

pipe spring and o-ring kit

The product worked well with my KX250. Had trouble at first trying to get the exhaust snugged. Happy that there is no leaks.

Brian (Seattle)

Fit
Quality
Sound
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Performance

Klx250 q4

Excellent addition to bike. Sounds great, works great. Turns the bike into a proper moto. A little issue with fit due to some bent frame tabs. Didn't notice when installed originally, but once addressed all was good.

Ryan (San Diego)

Fit
Quality
Installation
Recommend

Looks Sweet!

I have this in my garage under my Honda CRF 450 and it's a nice size and does the job. And to add to it, looks amazing and I get alot of compliments!

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