FMF

FMF Exhaust Systems for 2-Stroke and 4-Stroke Bikes

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FMF - Gnarly Pipe (KTM)FMF - Gnarly Pipe (KTM) - alternate view
Summer Deal
FMF - Gnarly Pipe (KTM)
Price range: $269.99 - $314.99
Up to 10% OFF
FMF - Q4 Hex Slip-On Muffler (Husqvarna)FMF - Q4 Hex Slip-On Muffler (Husqvarna) - alternate view
Summer Deal
FMF - Q4 Hex Slip-On Muffler (Husqvarna)
Price range: $404.99 - $512.99
Up to 10% OFF
FMF - Powercore 2.1 Silencer (KTM)FMF - Powercore 2.1 Silencer (KTM) - alternate view
Summer Deal
FMF - Powercore 2.1 Silencer (KTM)
Price range: $215.99 - $404.99
Up to 10% OFF
FMF - Powercore 4 Hex Slip-on Muffler (Kawasaki)FMF - Powercore 4 Hex Slip-on Muffler (Kawasaki) - alternate view
Summer Deal
FMF - Powercore 4 Hex Slip-on Muffler (Kawasaki)
Price range: $359.99 - $404.99
Up to 10% OFF
FMF - Factory Fatty Pipe (Suzuki)
Summer Deal
FMF - Factory Fatty Pipe (Suzuki)
. Final price: $269.99 . Original price: $299.99
10% OFF
FMF - Turbinecore 2 Spark Arrestor (KTM)FMF - Turbinecore 2 Spark Arrestor (KTM) - alternate view
Summer Deal
FMF - Turbinecore 2 Spark Arrestor (KTM)
Price range: $197.99 - $206.99
Up to 10% OFF
FMF - Powercore 4 Muffler (Kawasaki)FMF - Powercore 4 Muffler (Kawasaki) - alternate view
Summer Deal
FMF - Powercore 4 Muffler (Kawasaki)
Price range: $260.99 - $404.99
Up to 10% OFF
FMF Vision Powerbomb Goggle Clear Lens (Youth) in Rocket Black SKU 534222FMF Vision Powerbomb Goggle Clear Lens (Youth) - detail of foam padding and fit SKU 534222 - alternate view
FMF - Vision Powerbomb Goggle Clear Lens (Youth)
. Final price: $32.50 . Original price: $32.50
FMF - Turbinecore 2.1 Spark Arrestor (Husqvarna)FMF - Turbinecore 2.1 Spark Arrestor (Husqvarna) - alternate view
Summer Deal
FMF - Turbinecore 2.1 Spark Arrestor (Husqvarna)
. Final price: $242.99 . Original price: $269.99
10% OFF
FMF - Megabomb Titanium Header (Honda)FMF - Megabomb Titanium Header (Honda) - alternate view
Summer Deal
FMF - Megabomb Titanium Header (Honda)
. Final price: $427.49 . Original price: $474.99
10% OFF
FMF - Megabomb Titanium Header (KTM)FMF - Megabomb Titanium Header (KTM) - alternate view
Summer Deal
FMF - Megabomb Titanium Header (KTM)
. Final price: $427.49 . Original price: $474.99
10% OFF
FMF - Powercore 4 Muffler KLX/DRZ 110's
Summer Deal
FMF - Powercore 4 Muffler KLX/DRZ 110's
. Final price: $251.99 . Original price: $279.99
10% OFF
Husqvarna - FMF Factory 4.1 RCT SilencerHusqvarna - FMF Factory 4.1 RCT Silencer - alternate view
Husqvarna - FMF Factory 4.1 RCT Silencer
. Final price: $854.99 . Original price:
FMF - Powercore 2 Shorty Silencer (Yamaha)FMF - Powercore 2 Shorty Silencer (Yamaha) - alternate view
Summer Deal
FMF - Powercore 2 Shorty Silencer (Yamaha)
. Final price: $179.99 . Original price: $199.99
10% OFF
FMF - Megabomb Stainless Header (Yamaha)FMF - Megabomb Stainless Header (Yamaha) - alternate view
Summer Deal
FMF - Megabomb Stainless Header (Yamaha)
. Final price: $382.49 . Original price: $424.99
10% OFF
FMF - Q4 Hex Slip-On Muffler (Yamaha)FMF - Q4 Hex Slip-On Muffler (Yamaha) - alternate view
Summer Deal
FMF - Q4 Hex Slip-On Muffler (Yamaha)
Price range: $404.99 - $449.99
Up to 10% OFF
FMF - Factory 4.1 RCT Aluminum Slip-On Exhaust w/Stainless Mid Pipe (Gas Gas)
Summer Deal
FMF - Factory 4.1 RCT Aluminum Slip-On Exhaust w/Stainless Mid Pipe (Gas Gas)
Price range: $494.99 - $607.49
Up to 10% OFF
FMF - Fatty Pipe (Yamaha)FMF - Fatty Pipe (Yamaha) - alternate view
Summer Deal
FMF - Fatty Pipe (Yamaha)
Price range: $260.99 - $305.99
Up to 10% OFF
FMF - KTM Powercore 2.1 SilencerFMF - KTM Powercore 2.1 Silencer - alternate view
Summer Deal
FMF - KTM Powercore 2.1 Silencer
Price range: $215.99 - $239.99
Up to 10% OFF
FMF - Mini Powercore 4 Muffler KLX/DRZ 110's
Summer Deal
FMF - Mini Powercore 4 Muffler KLX/DRZ 110's
. Final price: $269.99 . Original price: $299.99
10% OFF
FMF - Q4 Hex Slip-On Muffler (Honda)FMF - Q4 Hex Slip-On Muffler (Honda) - alternate view
Summer Deal
FMF - Q4 Hex Slip-On Muffler (Honda)
Price range: $404.99 - $449.99
Up to 10% OFF
FMF - Factory 4.1 RCT Complete System (Husqvarna)FMF - Factory 4.1 RCT Complete System (Husqvarna) - alternate view
Summer Deal
FMF - Factory 4.1 RCT Complete System (Husqvarna)
Price range: $944.99 - $1,196.99
Up to 10% OFF
FMF - Megabomb Stainless Header (KTM)FMF - Megabomb Stainless Header (KTM) - alternate view
Summer Deal
FMF - Megabomb Stainless Header (KTM)
Price range: $337.49 - $472.49
Up to 10% OFF
FMF - Powercore 4 Hex Slip-On Muffler (Husqvarna)FMF - Powercore 4 Hex Slip-On Muffler (Husqvarna) - alternate view
Summer Deal
FMF - Powercore 4 Hex Slip-On Muffler (Husqvarna)
Price range: $359.99 - $494.99
Up to 10% OFF
Husqvarna - FMF Fatty Expansion ChamberHusqvarna - FMF Fatty Expansion Chamber - alternate view
Husqvarna - FMF Fatty Expansion Chamber
. Final price: $299.99 . Original price:
FMF - Power Core 2 Silencer (Suzuki)FMF - Power Core 2 Silencer (Suzuki) - alternate view
Summer Deal
FMF - Power Core 2 Silencer (Suzuki)
. Final price: $179.99 . Original price: $199.99
10% OFF
FMF - Power Core 2 Silencer (Kawasaki)FMF - Power Core 2 Silencer (Kawasaki) - alternate view
Summer Deal
FMF - Power Core 2 Silencer (Kawasaki)
. Final price: $179.99 . Original price: $199.99
10% OFF
FMF - Fatty Pipe (Kawasaki)FMF - Fatty Pipe (Kawasaki) - alternate view
Summer Deal
FMF - Fatty Pipe (Kawasaki)
Price range: $260.99 - $296.99
Up to 10% OFF
FMF - Factory Fatty Pipe (Kawasaki)FMF - Factory Fatty Pipe (Kawasaki) - alternate view
Summer Deal
FMF - Factory Fatty Pipe (Kawasaki)
. Final price: $269.99 . Original price: $299.99
10% OFF
FMF - Powercore 4 Exhaust (ATV)FMF - Powercore 4 Exhaust (ATV) - alternate view
Summer Deal
FMF - Powercore 4 Exhaust (ATV)
. Final price: $359.99 . Original price: $399.99
10% OFF
FMF - Powercore 4 Hex Slip-On Muffler (Gas Gas)FMF - Powercore 4 Hex Slip-On Muffler (Gas Gas) - alternate view
Summer Deal
FMF - Powercore 4 Hex Slip-On Muffler (Gas Gas)
Price range: $404.99 - $494.99
Up to 10% OFF
FMF - Powercore 4 Hex Slip-On Muffler (Honda)FMF - Powercore 4 Hex Slip-On Muffler (Honda) - alternate view
Summer Deal
FMF - Powercore 4 Hex Slip-On Muffler (Honda)
Price range: $359.99 - $404.99
Up to 10% OFF
FMF - Factory 4.1 RCT Titanium Anodized Slip-On w/ Carbon Cap (Beta)
Summer Deal
FMF - Factory 4.1 RCT Titanium Anodized Slip-On w/ Carbon Cap (Beta)
. Final price: $674.99 . Original price: $749.99
10% OFF
FMF - Megabomb Stainless Header (Kawasaki)FMF - Megabomb Stainless Header (Kawasaki) - alternate view
Summer Deal
FMF - Megabomb Stainless Header (Kawasaki)
. Final price: $337.49 . Original price: $374.99
10% OFF
FMF - Megabomb Stainless Header (Honda)FMF - Megabomb Stainless Header (Honda) - alternate view
Summer Deal
FMF - Megabomb Stainless Header (Honda)
. Final price: $337.49 . Original price: $374.99
10% OFF
FMF - Powercore 2 Silencer (Suzuki)FMF - Powercore 2 Silencer (Suzuki) - alternate view
Summer Deal
FMF - Powercore 2 Silencer (Suzuki)
. Final price: $179.99 . Original price: $199.99
10% OFF
KTM PowerParts - FMF Fatty Expansion ChamberKTM PowerParts - FMF Fatty Expansion Chamber - alternate view
KTM PowerParts - FMF Fatty Expansion Chamber
. Final price: $299.99 . Original price:
FMF - Factory 4.1 RCT Complete System (Yamaha)
Summer Deal
FMF - Factory 4.1 RCT Complete System (Yamaha)
. Final price: $967.49 . Original price: $1,074.99
10% OFF
FMF - Powercore 4 Muffler (Honda)
Summer Deal
FMF - Powercore 4 Muffler (Honda)
. Final price: $404.99 . Original price: $449.99
10% OFF
GasGas - FMF Factory 4.1 RCT SilencerGasGas - FMF Factory 4.1 RCT Silencer - alternate view
GasGas - FMF Factory 4.1 RCT Silencer
. Final price: $854.99 . Original price:
GasGas - FMF Fatty Expansion ChamberGasGas - FMF Fatty Expansion Chamber - alternate view
GasGas - FMF Fatty Expansion Chamber
. Final price: $299.99 . Original price:
FMF - Powercore 2.1 Shorty Silencer (Husqvarna)FMF - Powercore 2.1 Shorty Silencer (Husqvarna) - alternate view
Summer Deal
FMF - Powercore 2.1 Shorty Silencer (Husqvarna)
Price range: $179.99 - $404.99
Up to 10% OFF
FMF - Powercore 2 Silencer (KTM)FMF - Powercore 2 Silencer (KTM) - alternate view
Summer Deal
FMF - Powercore 2 Silencer (KTM)
. Final price: $179.99 . Original price: $199.99
10% OFF
FMF - Power Core 2 Silencer (Honda)FMF - Power Core 2 Silencer (Honda) - alternate view
Summer Deal
FMF - Power Core 2 Silencer (Honda)
. Final price: $179.99 . Original price: $199.99
10% OFF
FMF - Gnarly Pipe (Husqvarna)FMF - Gnarly Pipe (Husqvarna) - alternate view
Summer Deal
FMF - Gnarly Pipe (Husqvarna)
Price range: $269.99 - $296.99
Up to 10% OFF
FMF - Gold Series Fatty Pipe (Yamaha) YZ250 '84-86
Summer Deal
FMF - Gold Series Fatty Pipe (Yamaha) YZ250 '84-86
. Final price: $296.99 . Original price: $329.99
10% OFF
FMF - Megabomb Stainless Header (Husqvarna)FMF - Megabomb Stainless Header (Husqvarna) - alternate view
Summer Deal
FMF - Megabomb Stainless Header (Husqvarna)
Price range: $313.19 - $472.49
Up to 10% OFF
FMF - Fatty Pipe (Honda)FMF - Fatty Pipe (Honda) - alternate view
Summer Deal
FMF - Fatty Pipe (Honda)
Price range: $269.99 - $314.99
Up to 10% OFF
You’ve viewed 96/175 products

FMF | High-Performance Exhaust Systems & Parts for 2-Stroke & 4-Stroke

FMF Racing is one of the most respected names in dirt bike and motocross exhaust performance, trusted by professional racers and weekend riders alike. Known for race-proven engineering, FMF exhaust systems are designed to improve power delivery, throttle response, and overall ride character across motocross, off-road, and trail applications. Whether you ride a 2-stroke or 4-stroke, FMF offers tuned solutions that balance performance gains with durability and sound control.

At BTO Sports, you can shop all FMF products, browse dedicated FMF exhaust systems, or find discounted options in the FMF exhaust sale. FMF exhausts are engineered to match specific riding styles, terrain types, and engine platforms so riders can dial in performance without guesswork.

FMF Exhaust Categories | Built for How You Ride

FMF offers a full lineup of performance exhaust components designed around engine type and riding demands. Popular performance categories include high-flow 2-stroke pipes that enhance powerband response, durable 2-stroke silencers for tuned sound and throttle feel, and race-inspired 4-stroke exhausts that improve torque, horsepower, and weight savings.

For riders chasing top-tier race performance, the FMF Factory 4.1 exhausts represent FMF’s flagship systems, combining advanced materials, precision tuning, and competition-level performance for motocross and off-road racing.

Accessories, ATV Systems & Lifestyle Gear

In addition to full exhaust systems, FMF offers a wide range of supporting components and gear. Riders can find replacement parts and tuning components in FMF exhaust accessories, performance-focused ATV exhaust systems for quad riders, and off-bike style options in FMF casual wear.

OEM-Specific FMF Exhaust Options

FMF designs exhaust systems specifically for popular OEM platforms to ensure proper fitment and optimized performance. Riders can shop bike-specific options such as GasGas FMF pipes, GasGas 2-stroke silencers, Husqvarna FMF pipes, and KTM PowerParts FMF 2-stroke silencers. These OEM-matched systems help riders unlock performance without compromising reliability or fit.

From motocross tracks to off-road trails, FMF exhaust systems deliver proven performance gains backed by decades of racing experience. Explore the categories above to find the right FMF setup for your dirt bike, riding style, and performance goals.