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
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FMF Factory 4.1 RCT Exhaust - Titanium 042378
FMF
$1,199.99If you're running a high-performance off-road bike, you need an exhaust system that doesn't force you to choose between power and compliance. The FMF Factory 4.1 RCT delivers full power across the entire RPM range while meeting strict AMA and FIM sound...18201901- SKU:
- 18201901
- Availability:
- Ships Same Business Day
- Weight:
- 8.15 LBS
- MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- TYPE:
- FULL SYSTEM
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- RIDING STYLE:
- OFF-ROAD
- PIPE MATERIAL:
- TITANIUM
- PRODUCT NAME:
- EXHAUST SYSTEM
- END CAP MATERIAL:
- CARBON FIBER
- MATERIAL:
- TITANIUM
- MUFFLER MATERIAL:
- TITANIUM
- STYLE:
- MEGABOMB
- UNITS:
- EACH
$1,199.99 -
FMF Fatty Pipe 025238
FMF
$299.99The FMF Fatty Pipe 025238 is engineered to smooth and broaden your power curve across the entire rev range, delivering measurable gains in low-end tractability, mid-range response, and top-end over-rev. If you're serious about maximizing performance...18201865- SKU:
- 18201865
- Availability:
- Ships Same Business Day
- Weight:
- 3.35 LBS
- PRODUCT NAME:
- PIPE
- TYPE:
- EXHAUST
- MODEL:
- FATTY
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- CARBON STEEL
- UNITS:
- EACH
$299.99 -
FMF Factory Fatty Pipe 025239
FMF
$299.99If you're looking to unlock consistent power gains across your entire power band without sacrificing low-end response, the FMF Factory Fatty Pipe delivers exactly what modern riders demand. By smoothing out the power curve from bottom to top, this pipe...18201866- SKU:
- 18201866
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- FACTORY FATTY
- UNITS:
- EACH
- PRODUCT NAME:
- PIPE
- TYPE:
- EXHAUST
$299.99 -
FMF Factory Fatty Rev Pipe 025240
FMF
$299.99If you're losing power in the mid-to-upper RPM range or spending too much time between gear changes, the FMF Factory Fatty Rev Pipe delivers the midrange and top-end response you need to stay competitive. Built specifically for deep berms and sand riding...18201867- SKU:
- 18201867
- Availability:
- Ships Same Business Day
- Weight:
- 2.94 LBS
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- FACTORY FATTY REV
- MATERIAL:
- STEEL
- PRODUCT NAME:
- PIPE
- TYPE:
- EXHAUST
- UNITS:
- EACH
$299.99 -
FMF Fatty Pipe 025241
FMF
$299.99The FMF Fatty Pipe 025241 is built on over 35 years of proven race track performance, delivering consistent power gains across your entire power band. Whether you're chasing low-end torque, mid-range punch, or top-end revs, this pipe smooths out your...18201868- SKU:
- 18201868
- Availability:
- Ships Same Business Day
- Weight:
- 5.05 LBS
- MATERIAL:
- CARBON STEEL
- UNITS:
- EACH
- MODEL:
- FATTY
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PIPE
- TYPE:
- EXHAUST
$299.99 -
FMF Gnarly Pipe 025242
FMF
$299.99If you're running tight tracks or aggressive off-road terrain, the FMF Gnarly Pipe 025242 delivers the low-end torque and mid-range punch your engine needs to stay competitive. This pipe is engineered specifically for tractability—meaning better throttle...18201869- SKU:
- 18201869
- Availability:
- Ships Same Business Day
- Weight:
- 5.60 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- NICKEL-PLATED
- PRODUCT NAME:
- PIPE
- TYPE:
- EXHAUST
- MODEL:
- GNARLY
$299.99 -
FMF Factory Fatty Pipe 025243
FMF
$299.99If you're running a stock exhaust pipe, you're leaving power on the table across your entire RPM range. The FMF Factory Fatty delivers a broader, smoother power curve with measurable gains in low-end torque, mid-range response, and top-end...18201870- SKU:
- 18201870
- Availability:
- Ships Same Business Day
- Weight:
- 5.15 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- PIPE
- TYPE:
- EXHAUST
- MODEL:
- FACTORY FATTY
$299.99 -
FMF 4.1 RCT Exhaust with MegaBomb - Aluminum 044456
FMF
$1,074.99If you're serious about extracting maximum performance from your machine, the FMF 4.1 RCT Exhaust with MegaBomb delivers power gains across the entire RPM band while shaving unnecessary weight. The factory-engineered geometry and aerospace-grade...18201840- SKU:
- 18201840
- Availability:
- Ships Same Business Day
- Weight:
- 7.90 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- FULL SYSTEM
- PRODUCT NAME:
- EXHAUST SYSTEM
$1,074.99 -
FMF 4.1 RCT Exhaust with MegaBomb - Anodized Titanium 044457
FMF
$1,374.99If you're running a high-performance machine that demands peak power delivery across the entire RPM range, the FMF 4.1 RCT is engineered to unlock measurable gains without the weight penalty of conventional systems. By centralizing mass through Factory...18201841- SKU:
- 18201841
- Availability:
- Ships Same Business Day
- Weight:
- 7.80 LBS
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- TYPE:
- FULL SYSTEM
- RIDING STYLE:
- OFF-ROAD
- PIPE MATERIAL:
- TITANIUM
- PRODUCT NAME:
- EXHAUST SYSTEM
- END CAP MATERIAL:
- CARBON FIBER
- MUFFLER MATERIAL:
- TITANIUM
- UNITS:
- EACH
$1,374.99 -
FMF 4.1 RCT Exhaust with MegaBomb - Anodized Titanium 042373
FMF
$1,224.99If you're serious about two-stroke performance, exhaust system choice directly impacts your power delivery, weight, and handling characteristics. The FMF 4.1 RCT delivers measurable gains across the entire RPM range while shaving pounds and relocating...18201844- SKU:
- 18201844
- Availability:
- Ships Same Business Day
- Weight:
- 8.95 LBS
- PIPE MATERIAL:
- TITANIUM
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- MUFFLER MATERIAL:
- TITANIUM
- END CAP MATERIAL:
- CARBON FIBER
- UNITS:
- EACH
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- RIDING STYLE:
- OFF-ROAD
$1,224.99 -
FMF Fatty Pipe 024072
FMF
$299.99The FMF Fatty Gold Series pipe is engineered to deliver consistent power gains across your entire RPM range—not just at peak revs. If you're looking for improved low-end response, better mid-range punch, and more aggressive over-rev without sacrificing...18201850- SKU:
- 18201850
- Availability:
- Ships Same Business Day
- Weight:
- 5.90 LBS
- TYPE:
- EXHAUST
- MODEL:
- FATTY
- PRODUCT NAME:
- PIPE
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- CARBON STEEL
- UNITS:
- EACH
$299.99Qty in Cart: 0Quantity:Price:$299.99Subtotal: -
FMF Factory Fatty Pipe 024073
FMF
$299.99If you're looking to unlock consistent power gains across your entire powerband without compromising on weight, the FMF Factory Fatty Pipe delivers the refined engineering that factory race teams have trusted for decades. Hand-crafted construction and...18201851- SKU:
- 18201851
- Availability:
- Ships Same Business Day
- Weight:
- 5.95 LBS
- MATERIAL:
- STEEL
- TYPE:
- EXHAUST
- UNITS:
- EACH
- PRODUCT NAME:
- PIPE
- MODEL:
- FACTORY FATTY
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF Factory Fatty Pipe 024069
FMF
$289.99The FMF Factory Fatty Pipe delivers the proven performance characteristics of factory racing systems, with a broadened and smoothed power curve that generates gains across your entire power band. Hand-pounded seams and precision material selection create...18201828- SKU:
- 18201828
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- MODEL:
- FACTORY FATTY
- PRODUCT NAME:
- PIPE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TYPE:
- EXHAUST
$289.99 -
FMF Fatty Pipe 020375
FMF
$299.99The FMF Fatty Pipe 020375 is engineered to extract measurable horsepower gains by optimizing exhaust scavenging at the RPM ranges where your engine operates hardest. Computer-designed and dyno-tested for real-world performance, this pipe delivers the...FMF020375- SKU:
- FMF020375
- Availability:
- Ships Same Business Day
- Weight:
- 5.38 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- NICKEL-PLATED
- MODEL:
- GOLD SERIES FATTY
- MATERIAL:
- STEEL
- UNITS:
- KIT
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- PRODUCT NAME:
- HEAD PIPE
$299.99 -
FMF Fatty Pipe 020378
FMF
$299.99The FMF Fatty Pipe 020378 is engineered to deliver measurable power gains by optimizing exhaust flow characteristics specific to your machine's performance envelope. Computer modeling and dyno testing ensure this pipe makes power exactly where your...FMF020378- SKU:
- FMF020378
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
- COLOR/FINISH:
- NICKEL-PLATED
- MODEL:
- GOLD SERIES FATTY
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STEEL
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- PRODUCT NAME:
- HEAD PIPE
$299.99 -
FMF Gnarly Pipe 020379
FMF
$299.99If you're running a 2-stroke in demanding off-road conditions, you need a pipe engineered for real-world punishment—not just peak RPM numbers. The FMF Gnarly Pipe delivers the low-end torque and bottom-range response that separates competent machines...FMF020379- SKU:
- FMF020379
- Availability:
- Ships Same Business Day
- Weight:
- 7.81 LBS
- MATERIAL:
- STEEL
- MODEL:
- GNARLY
- PRODUCT NAME:
- PIPE
- COLOR/FINISH:
- NICKEL-PLATED
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$299.99 -
FMF Fatty Pipe 020390
FMF
$299.99The FMF Fatty Pipe 020390 is engineered to extract measurable power gains by optimizing exhaust scavenging at the RPM ranges where your machine operates hardest. Computer-designed and dyno-tested, this pipe delivers real performance improvements without...FMF020390- SKU:
- FMF020390
- Availability:
- Ships Same Business Day
- Weight:
- 7.19 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MODEL:
- GOLD SERIES FATTY
- PRODUCT NAME:
- HEAD PIPE
- COLOR/FINISH:
- NICKEL-PLATED
- UNITS:
- KIT
$299.99 -
FMF Powercore 2 Shorty Silencer 020400
FMF
$199.99In supercross competition, every millisecond of throttle response matters—and that's exactly what the FMF Powercore 2 Shorty Silencer delivers. By reducing overall canister length, this silencer sharpens your machine's power delivery and improves...FMF020400- SKU:
- FMF020400
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- PRODUCT NAME:
- SILENCER
- UNITS:
- EACH
- END CAP STYLE:
- CONICAL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- POWERCORE 2 SHORTY
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
$199.99 -
FMF PowerCore 4 HEX Muffler 041586
FMF
$399.99The FMF PowerCore 4 HEX delivers measurable gains in power and torque while maintaining the durability you need for repeated heat cycles and aggressive riding conditions. Its Hi-Flo internal core geometry reduces backpressure, allowing your engine to...18113799- SKU:
- 18113799
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- END CAP MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- MODEL:
- POWERCORE 4 HEX
- TYPE:
- SLIP-ON
- UNITS:
- EACH
$399.99 -
FMF Fatty Pipe 025069
FMF
$299.99If you're serious about extracting maximum power from your machine, intake flow is non-negotiable—and the FMF Fatty Pipe 025069 is engineered to optimize performance exactly where your engine needs it most. Computer-designed and dyno-tested for...18200080- SKU:
- 18200080
- Availability:
- Ships Same Business Day
- Weight:
- 6.50 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- 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
$299.99
