FMF

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

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FMF - Fatty Pipe (Honda) CR-125R '05-07
FMF - Fatty Pipe (Honda) CR-125R '05-07
. Final price: $275.49 . Original price:
FMF - Factory SunglassesFMF - Factory Sunglasses - alternate view
FMF - Factory Sunglasses
Price range: $29.50 - $34.50
FMF - Factory 4.1 RCT Complete System (Gas Gas)FMF - Factory 4.1 RCT Complete System (Gas Gas) - alternate view
Limited Time Deal
FMF - Factory 4.1 RCT Complete System (Gas Gas)
Price range: $944.99 - $1,196.99
Up to 10% OFF
FMF - Powercore 2.1 Silencer (Sherco)
Limited Time Deal
FMF - Powercore 2.1 Silencer (Sherco)
. Final price: $215.99 . Original price: $239.99
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 - Powercore 2 Shorty Silencer (Honda)FMF - Powercore 2 Shorty Silencer (Honda) - alternate view
Limited Time Deal
FMF - Powercore 2 Shorty Silencer (Honda)
. Final price: $179.99 . Original price: $199.99
10% OFF
FMF - Powercore 2 Shorty Silencer (Husqvarna)FMF - Powercore 2 Shorty Silencer (Husqvarna) - alternate view
Limited Time Deal
FMF - Powercore 2 Shorty Silencer (Husqvarna)
. Final price: $179.99 . Original price: $199.99
10% OFF
FMF - Fatty Pipe (Honda) select-model:cr-125 select-year:90-97
FMF - Turbinecore 2.1 Silencer (Beta)
Limited Time Deal
FMF - Turbinecore 2.1 Silencer (Beta)
. Final price: $242.99 . Original price: $269.99
10% OFF
FMF - Q4 Hex Slip-On Muffler (Gas Gas)FMF - Q4 Hex Slip-On Muffler (Gas Gas) - alternate view
Limited Time Deal
FMF - Q4 Hex Slip-On Muffler (Gas Gas)
Price range: $404.99 - $512.99
Up to 10% OFF
FMF - Powercore 2.1 Shorty Silencer (Gas Gas)FMF - Powercore 2.1 Shorty Silencer (Gas Gas) - alternate view
Limited Time Deal
FMF - Powercore 2.1 Shorty Silencer (Gas Gas)
Price range: $179.99 - $404.99
Up to 10% OFF
FMF - Origins SunglassesFMF - Origins Sunglasses - alternate view
FMF - Origins Sunglasses
Price range: $29.50 - $34.50
FMF - Turbinecore 2 Spark Arrestor (Honda)FMF - Turbinecore 2 Spark Arrestor (Honda) - alternate view
Limited Time Deal
FMF - Turbinecore 2 Spark Arrestor (Honda)
. Final price: $197.99 . Original price: $219.99
10% OFF
FMF - Fatty Pipe (Gas Gas)FMF - Fatty Pipe (Gas Gas) - alternate view
Limited Time Deal
FMF - Fatty Pipe (Gas Gas)
Price range: $260.99 - $269.99
Up to 10% OFF
FMF - Turbinecore 2 Spark Arrestor (Kawasaki)FMF - Turbinecore 2 Spark Arrestor (Kawasaki) - alternate view
Limited Time Deal
FMF - Turbinecore 2 Spark Arrestor (Kawasaki)
. Final price: $197.99 . Original price: $219.99
10% OFF
FMF - Powercore 2.1 Shorty Silencer (Husqvarna)FMF - Powercore 2.1 Shorty Silencer (Husqvarna) - alternate view
Limited Time Deal
FMF - Powercore 2.1 Shorty Silencer (Husqvarna)
Price range: $179.99 - $404.99
Up to 10% OFF
FMF - Powercore 2 Silencer (Honda)FMF - Powercore 2 Silencer (Honda) - alternate view
Limited Time Deal
FMF - Powercore 2 Silencer (Honda)
. Final price: $179.99 . Original price: $199.99
10% OFF
FMF - 4-Stroke Race PackingFMF - 4-Stroke Race Packing - alternate view
Limited Time Deal
FMF - 4-Stroke Race Packing
. Final price: $34.19 . Original price: $37.99
10% OFF
FMF - Powercore 2 Shorty Silencer (Suzuki)FMF - Powercore 2 Shorty Silencer (Suzuki) - alternate view
Limited Time Deal
FMF - Powercore 2 Shorty Silencer (Suzuki)
. Final price: $179.99 . Original price: $199.99
10% OFF
FMF - Megabomb Stainless Header (Suzuki)FMF - Megabomb Stainless Header (Suzuki) - alternate view
Limited Time Deal
FMF - Megabomb Stainless Header (Suzuki)
. Final price: $337.49 . Original price: $374.99
10% OFF
FMF - Universal Header Heat ShieldFMF - Universal Header Heat Shield - alternate view
Limited Time Deal
FMF - Universal Header Heat Shield
Price range: $31.49 - $44.99
Up to 10% OFF
FMF - Turbinecore 2 Spark Arrestor (Suzuki)FMF - Turbinecore 2 Spark Arrestor (Suzuki) - alternate view
Limited Time Deal
FMF - Turbinecore 2 Spark Arrestor (Suzuki)
. Final price: $197.99 . Original price: $219.99
10% OFF
FMF - Pipe Spring and O-Ring Kit (Kawasaki)FMF - Pipe Spring and O-Ring Kit (Kawasaki) - alternate view
Limited Time Deal
FMF - Pipe Spring and O-Ring Kit (Kawasaki)
. Final price: $10.79 . Original price: $11.99
10% OFF
FMF - Fatty Pipe (Honda) select-model:cr-125 select-year:02-03
FMF - Powercore 2 Shorty Silencer (Kawasaki)FMF - Powercore 2 Shorty Silencer (Kawasaki) - alternate view
Limited Time Deal
FMF - Powercore 2 Shorty Silencer (Kawasaki)
. Final price: $179.99 . Original price: $199.99
10% OFF
FMF - Turbinecore 2 Spark Arrestor (Husqvarna)FMF - Turbinecore 2 Spark Arrestor (Husqvarna) - alternate view
Limited Time Deal
FMF - Turbinecore 2 Spark Arrestor (Husqvarna)
. Final price: $197.99 . Original price: $219.99
10% OFF
FMF - Fatty Pipe (Honda) select-model:cr-125 select-year:00-01
FMF - Fatty Pipe (Honda) select-model:cr-85 select-year:05-07
FMF - Pipe Spring and O-Ring Kit (Yamaha)FMF - Pipe Spring and O-Ring Kit (Yamaha) - alternate view
Limited Time Deal
FMF - Pipe Spring and O-Ring Kit (Yamaha)
. Final price: $10.79 . Original price: $11.99
10% OFF
GasGas - FMF Megabomb HeaderGasGas - FMF Megabomb Header - alternate view
GasGas - FMF Megabomb Header
. Final price: $474.99 . Original price:
FMF - Powercore 2 Replacement Rear End CapFMF - Powercore 2 Replacement Rear End Cap - alternate view
Limited Time Deal
FMF - Powercore 2 Replacement Rear End Cap
. Final price: $36 . Original price: $39.99
10% OFF
FMF - Premier Muffler Packing
FMF - Premier Muffler Packing
. Final price: $21.99 . 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 - Pipe Spring and O-Ring Kit (Honda)FMF - Pipe Spring and O-Ring Kit (Honda) - alternate view
Limited Time Deal
FMF - Pipe Spring and O-Ring Kit (Honda)
. Final price: $10.79 . Original price: $11.99
10% OFF
You’ve viewed 178/178 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.