Dirt Bike Exhaust
Dirt Bike Exhaust Systems at JJ Motorsports
Unlock your dirt bike's potential with high-performance exhaust systems from JJ Motorsports. From slip-on mufflers to full exhaust kits, these components boost horsepower, reduce weight, and deliver aggressive sound for the track or trail. Designed for durability and easy installation, our exhausts ensure better throttle response and emissions compliance while enhancing your ride's style.
Shop trusted brands like Pro Circuit for competition pipes and FMF for titanium systems. Explore related categories such as Dirt Bike Air and Fuel for intake pairing or Dirt Bike Engine for power upgrades.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
FMF Fatty Pipe 021052
FMF
$299.99The FMF Fatty Pipe 021052 delivers measurable horsepower gains by optimizing exhaust scavenging at the RPM ranges where your engine operates hardest. Computer-designed flow characteristics and dyno validation mean you're not guessing at...18200214- SKU:
- 18200214
- Availability:
- Ships Same Business Day
- Weight:
- 6.90 LBS
- MODEL:
- GOLD SERIES FATTY
- PRODUCT NAME:
- HEAD PIPE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STEEL
- COLOR/FINISH:
- NICKEL-PLATED
$299.99Qty in Cart: 0Quantity:Price:$299.99Subtotal: -
FMF Factory Fatty Pipe - '05-'07 CR250R 021055
FMF
$299.99If you're running a CR250R and want measurable power gains across the entire rev range, the FMF Factory Fatty Pipe delivers the goods. This hand-crafted exhaust smooths out the power curve while adding low-end torque, mid-range punch, and extended...18200217- SKU:
- 18200217
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- PRODUCT NAME:
- PIPE
- MODEL:
- FACTORY FATTY
- TYPE:
- EXHAUST
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$299.99Qty in Cart: 0Quantity:Price:$299.99Subtotal: -
FMF Fatty Pipe 022052
FMF
$299.99The FMF Fatty Pipe 022052 delivers measurable power gains by optimizing exhaust scavenging at the RPM ranges where your engine needs it most. Computer-designed and dyno-tested, this pipe eliminates guesswork and replaces it with proven performance data...18200218- SKU:
- 18200218
- Availability:
- Ships Same Business Day
- Weight:
- 7.35 LBS
- COLOR/FINISH:
- NICKEL-PLATED
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STEEL
- MODEL:
- GOLD SERIES FATTY
- PRODUCT NAME:
- HEAD PIPE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$299.99 -
FMF Fatty Pipe 023055
FMF
$299.99The FMF Fatty Pipe 023055 is engineered to deliver measurable performance gains by optimizing exhaust scavenging in the RPM range where your machine operates hardest. Computer-designed and dyno-tested, this pipe places power exactly where you need it—not...18200222- SKU:
- 18200222
- Availability:
- Ships Same Business Day
- Weight:
- 5.55 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MODEL:
- GOLD SERIES FATTY
- PRODUCT NAME:
- HEAD PIPE
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STEEL
- COLOR/FINISH:
- NICKEL-PLATED
$299.99Qty in Cart: 0Quantity:Price:$299.99Subtotal: -
FMF Fatty Pipe 021048
FMF
$299.99The FMF Fatty Pipe 021048 is engineered to deliver measurable power gains by optimizing exhaust flow at the RPM ranges where your machine operates hardest. Computer-designed and dyno-tested, this pipe puts performance exactly where you need it—no...18200291- SKU:
- 18200291
- Availability:
- Ships Same Business Day
- Weight:
- 5.60 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- HEAD PIPE
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- COLOR/FINISH:
- NICKEL-PLATED
- MODEL:
- GOLD SERIES FATTY
$299.99Qty in Cart: 0Quantity:Price:$299.99Subtotal: -
FMF Powercore 4 Exhaust 044272
FMF
$279.99The FMF Powercore 4 delivers measurable horsepower gains through optimized exhaust scavenging and reduced backpressure. Computer-designed internals and dyno-testing across 4-stroke platforms ensure consistent performance improvements without sacrificing...18200739- SKU:
- 18200739
- Availability:
- Ships Same Business Day
- Weight:
- 3.09 LBS
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- STYLE:
- ELLIPTICAL
- TYPE:
- FULL SYSTEM
- UNITS:
- KIT
- BASE COLOR:
- SILVER
- END CAP STYLE:
- EURO
- FEATURES:
- STANDARD
- MATERIAL:
- ALUMINUM
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
$279.99 -
FMF Factory Fatty Pipe 025121
FMF
$299.99If you're chasing measurable power gains across the entire RPM range, the FMF Factory Fatty Pipe delivers what purpose-built exhaust should: real low-end torque, responsive mid-range pull, and extended top-end performance without compromise. Hand-crafted...18201110- SKU:
- 18201110
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- FACTORY FATTY
- UNITS:
- EACH
- PRODUCT NAME:
- PIPE
- TYPE:
- EXHAUST
$299.99 -
FMF Gnarly Pipe 025131
FMF
$299.99If you're running a 2-stroke in demanding terrain, you know the challenge: keeping up with the torque delivery of heavier 4-stroke competition. The FMF Gnarly Pipe is engineered to solve this problem by shifting power to the lower and mid-range RPMs...18201112- SKU:
- 18201112
- Availability:
- Ships Same Business Day
- Weight:
- 7.15 LBS
- PRODUCT NAME:
- PIPE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- NICKEL-PLATED
- MODEL:
- GNARLY
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MATERIAL:
- STEEL
$299.99 -
FMF Factory Fatty Pipe 025133
FMF
$299.99If you're looking to unlock genuine power gains across your entire power band without compromise, the FMF Factory Fatty Pipe delivers the low-end response, mid-range punch, and top-end over-rev that serious riders demand. Built using the same handcrafted...18201114- SKU:
- 18201114
- Availability:
- Ships Same Business Day
- Weight:
- 6.75 LBS
- PRODUCT NAME:
- PIPE
- MODEL:
- FACTORY FATTY
- TYPE:
- EXHAUST
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF Gnarly Pipe 025143
FMF
$299.99If you're running a 2-stroke in demanding off-road terrain, you need a pipe engineered for real-world punishment—not just peak RPM numbers. The FMF Gnarly Pipe delivers 4-stroke-level torque and bottom-end grunt across your entire powerband, giving you...18201115- SKU:
- 18201115
- Availability:
- Ships Same Business Day
- Weight:
- 6.75 LBS
- PRODUCT NAME:
- PIPE
- MODEL:
- GNARLY
- UNITS:
- EACH
- COLOR/FINISH:
- NICKEL-PLATED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF Gnarly Pipe 025087
FMF
$299.99If you're running a 2-stroke in challenging terrain, you know that low-end torque isn't always guaranteed—especially when you need that tractor-like pull to power through rocky climbs and technical sections. The FMF Gnarly Pipe delivers the...18200417- SKU:
- 18200417
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- GNARLY
- COLOR/FINISH:
- NICKEL-PLATED
- UNITS:
- EACH
- PRODUCT NAME:
- PIPE
$299.99 -
FMF Fatty Pipe 025088
FMF
$299.99The FMF Fatty Pipe 025088 is engineered to unlock power exactly where your engine delivers it most—through dyno-validated design that eliminates guesswork. Built tough with precision construction, this exhaust component combines durability with...18200494- SKU:
- 18200494
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- HEAD PIPE
- COLOR/FINISH:
- NICKEL-PLATED
- MODEL:
- GOLD SERIES FATTY
- UNITS:
- KIT
$299.99 -
FMF Factory Fatty Pipe 025090
FMF
$299.99If you're looking to unlock measurable power gains across your entire powerband without compromise, the FMF Factory Fatty Pipe delivers the performance characteristics once reserved for factory racing teams. Hand-crafted with the same attention to detail...18200496- SKU:
- 18200496
- Availability:
- Ships Same Business Day
- Weight:
- 3.06 LBS
- TYPE:
- EXHAUST
- UNITS:
- EACH
- PRODUCT NAME:
- PIPE
- MATERIAL:
- STEEL
- MODEL:
- FACTORY FATTY
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF Powercore 4 Exhaust 040011
FMF
$299.99The FMF Powercore 4 Exhaust is engineered to maximize exhaust scavenging on 4-stroke engines, translating directly into measurable horsepower and torque gains across the entire RPM band. By reducing backpressure through high-flow design and computer...18201317- SKU:
- 18201317
- Availability:
- Ships Same Business Day
- Weight:
- 3.56 LBS
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- ELLIPTICAL
- END CAP STYLE:
- EURO
- MATERIAL:
- ALUMINUM
- BASE COLOR:
- SILVER
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- FEATURES:
- WITH SPARK ARRESTOR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FULL SYSTEM
- UNITS:
- KIT
$299.99 -
FMF Fatty Pipe 024023
FMF
$289.99The FMF Fatty Pipe 024023 is computer-designed and dyno-tested to extract maximum power exactly where your machine needs it most. By optimizing exhaust flow through precision engineering, this pipe delivers measurable performance gains without...18201320- SKU:
- 18201320
- Availability:
- Ships Same Business Day
- Weight:
- 2.63 LBS
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MODEL:
- GOLD SERIES FATTY
- COLOR/FINISH:
- NICKEL-PLATED
- MATERIAL:
- STEEL
- PRODUCT NAME:
- HEAD PIPE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$289.99 -
FMF Powercore 4 Exhaust 044157
FMF
$299.99The FMF Powercore 4 is engineered to extract maximum airflow from your 4-stroke engine, delivering measurable gains in power and torque through optimized exhaust scavenging. Every component—from the hi-flo end cap to the computer-designed rear can—has...18201322- SKU:
- 18201322
- Availability:
- Ships Same Business Day
- Weight:
- 3.91 LBS
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- FEATURES:
- WITH SPARK ARRESTOR
- UNITS:
- KIT
- BASE COLOR:
- SILVER
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- END CAP STYLE:
- EURO
- MATERIAL:
- ALUMINUM
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- ELLIPTICAL
$299.99Qty in Cart: 0Quantity:Price:$299.99Subtotal: -
FMF Powercore 4 Exhaust 040072
FMF
$279.99The FMF Powercore 4 exhaust system is engineered to extract measurable performance gains from your 4-stroke engine by optimizing exhaust gas flow and reducing backpressure. Computer-designed and dyno-tested across multiple platforms, this system delivers...18201341- SKU:
- 18201341
- Availability:
- Ships Same Business Day
- Weight:
- 4.10 LBS
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- FEATURES:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BASE COLOR:
- SILVER
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- END CAP STYLE:
- EURO
- MATERIAL:
- ALUMINUM
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- ELLIPTICAL
$279.99 -
FMF Gnarly Pipe 025152
FMF
$299.99If you're running a 2-stroke in brutal terrain and need the torque response of a 4-stroke, the FMF Gnarly Pipe delivers the bottom-end grunt that separates finishers from quitters. Built from 18-gauge steel, this pipe is engineered to survive the...18201376- SKU:
- 18201376
- Availability:
- Ships Same Business Day
- Weight:
- 7.52 LBS
- MODEL:
- GNARLY
- PRODUCT NAME:
- PIPE
- UNITS:
- EACH
- COLOR/FINISH:
- NICKEL-PLATED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF Factory Fatty Pipe 025101
FMF
$289.99The FMF Factory Fatty Pipe delivers a broader, smoother power curve across your entire RPM range—exactly what factory racing teams engineered decades ago. By reducing restriction and optimizing flow transitions, you'll gain measurable low-end torque,...18201385- SKU:
- 18201385
- Availability:
- Ships Same Business Day
- Weight:
- 2.34 LBS
- TYPE:
- EXHAUST
- UNITS:
- EACH
- PRODUCT NAME:
- PIPE
- MATERIAL:
- STEEL
- MODEL:
- FACTORY FATTY
- RIDING STYLE:
- OFF-ROAD
$289.99 -
FMF Fatty Pipe 025150
FMF
$289.99The FMF Fatty Pipe 025150 delivers measurable horsepower gains by optimizing exhaust scavenging at the RPM ranges where your machine operates hardest. Computer-designed and dyno-tested, this pipe eliminates guesswork and puts power exactly where you need...18201386- SKU:
- 18201386
- Availability:
- Ships Same Business Day
- Weight:
- 2.09 LBS
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STEEL
- COLOR/FINISH:
- NICKEL-PLATED
- MODEL:
- GOLD SERIES FATTY
- PRODUCT NAME:
- HEAD PIPE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$289.99
