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 Spark Arrestor - Powercore 4 Hex 040670
FMF
$29.99If you're running off-road or in fire-restricted areas, a spark arrestor isn't optional—it's mandatory. The FMF Powercore 4 Hex insert delivers reliable spark suppression while maintaining exhaust flow, keeping your 4-stroke engine legal and compliant...18600703- SKU:
- 18600703
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- SCREEN INSERT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MODEL:
- POWERCORE 4 HEX
- TYPE:
- SPARK ARRESTOR
$29.99 -
FMF Exhaust O-Rings 014822
FMF
$12.99A leaking exhaust system compromises engine performance, increases emissions, and creates safety hazards. FMF Exhaust O-Rings 014822 provide a reliable, low-cost seal replacement that restores your exhaust system's integrity without requiring a complete...18600931- SKU:
- 18600931
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- RUBBER
- TYPE:
- EXHAUST
- UNITS:
- PAIR
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- OFF-ROAD
$12.99 -
FMF Exhaust O-Rings 014823
FMF
$12.99Exhaust system leaks compromise both performance and longevity, often going unnoticed until damage compounds. FMF Exhaust O-Rings (014823) provide a precision seal at critical exhaust joints, preventing hot gas escape and maintaining backpressure...18600932- SKU:
- 18600932
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- RUBBER
- TYPE:
- EXHAUST
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$12.99 -
FMF Exhaust O-Rings 014824
FMF
$12.99Exhaust O-rings are critical sealing components that prevent leaks at pipe connections, maintaining system integrity and performance efficiency. A worn or degraded O-ring compromises exhaust flow, increases emissions, and can lead to costly secondary...18600933- SKU:
- 18600933
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- PRODUCT NAME:
- O-RING
- MATERIAL:
- RUBBER
- TYPE:
- EXHAUST
$12.99 -
FMF Universal Strap 020480
FMF
$24.99Securing your FMF muffler or spark arrestor properly is essential for maintaining exhaust system integrity during aggressive riding or racing conditions. This universal strap prevents vibration-induced loosening and rattling that can compromise...18600935- SKU:
- 18600935
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- STRAP
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- RIDING STYLE:
- UTV
- TYPE:
- MOUNTING STRAP
$24.99 -
FMF Heat Shield - Stainless 040231
FMF
$34.99Exhaust heat shields protect your bike's bodywork, wiring, and fuel system from the extreme temperatures generated by high-performance head pipes. The FMF Heat Shield keeps underbody components safe while maintaining optimal airflow around your exhaust...18610043- SKU:
- 18610043
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- SHIELD
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- HEAT SHIELD
- RIDING STYLE:
- UTV
- STYLE:
- UNIVERSAL
- UNITS:
- EACH
$34.99 -
FMF Wrap Decal - Mini Replacement 014851
FMF
$16.99FMF's wrap decals deliver authentic branding and professional aesthetics to your exhaust system while protecting against UV fade and weathering. Whether you're restoring original factory appearance or customizing your build, this mini replacement decal...18602113- SKU:
- 18602113
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- COLOR/FINISH:
- YELLOW
- GRAPHIC:
- FMF LOGO
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- BASE COLOR:
- YELLOW
- STYLE:
- FACTORY 4.1 MINI
- TYPE:
- EXHAUST
- UNITS:
- EACH
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- DECAL
$16.99 -
FMF Replacement Ring - Factory 4.1 RCT 040677
FMF
$5.99The FMF Replacement Ring (040677) is an essential wear component for maintaining the integrity of your FMF 4-Stroke exhaust system. Over time, retaining rings experience fatigue from thermal cycling and vibration, compromising your exhaust's structural...18601050- SKU:
- 18601050
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RETAINING RING
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- REPLACEMENT COMPONENT
- UNITS:
- EACH
$5.99 -
FMF Spark Arrestor Insert - 4.1 RCT 040638
FMF
$39.99A spark arrestor insert keeps your 4-stroke exhaust system compliant with forest service and track regulations while preventing dangerous spark ejection. This FMF replacement screen is engineered to maintain exhaust flow efficiency without compromising...18610698- SKU:
- 18610698
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- TYPE:
- SPARK ARRESTOR
- UNITS:
- EACH
- PRODUCT NAME:
- SCREEN INSERT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- FACTORY 4.1 RCT
$39.99 -
FMF Heat Shield - Titanium 040230
FMF
$49.99Exhaust heat shields protect critical engine bay components from thermal damage while reducing underhood temperatures that can degrade fuel lines, wiring harnesses, and adjacent carbon fiber parts. FMF's titanium construction offers superior heat...18610169- SKU:
- 18610169
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SHIELD
- RIDING STYLE:
- ATV
- TYPE:
- HEAT SHIELD
- UNITS:
- EACH
- RIDING STYLE:
- UTV
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- UNIVERSAL
$49.99 -
FMF 94dB Spark Arrestor Insert - 4.1 RCT 040678
FMF
$39.99If you're running an off-road machine in a region with spark arrestor requirements, this FMF insert keeps you compliant without sacrificing flow. The 94dB rating meets most jurisdictional noise limits while the screen design captures hot carbon particles...18611097- SKU:
- 18611097
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- SCREEN INSERT
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- FACTORY 4.1
- MODEL:
- FACTORY 4.1 RCT
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SPARK ARRESTOR
$39.99 -
FMF Powercore 2.1 Shorty Muffler 025213
FMF
$239.99If you're serious about extracting maximum horsepower while keeping your bike compliant and lightweight, the FMF Powercore 2.1 Shorty Muffler delivers proven performance gains with minimal weight penalty. This muffler is engineered to reduce backpressure...18211816- SKU:
- 18211816
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- MODEL:
- POWERCORE 2.1 SHORTY
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- WEIGHT REDUCTION IMPERIAL:
- 1.5 LB
- END CAP MATERIAL:
- STAINLESS STEEL
- STYLE:
- SHORT
- PRODUCT NAME:
- SILENCER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$239.99 -
FMF Powercore 2.1 Shorty Muffler 025214
FMF
$449.99If you're running a high-performance build, exhaust flow directly impacts horsepower, throttle response, and overall engine efficiency. The FMF Powercore 2.1 Shorty Muffler eliminates restrictive stock components while maintaining sound control—a...18211817- SKU:
- 18211817
- Availability:
- Ships Same Business Day
- Weight:
- 4.10 LBS
- MODEL:
- POWERCORE 2.1 SHORTY
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- WEIGHT REDUCTION IMPERIAL:
- 1.5 LB
- END CAP MATERIAL:
- TITANIUM
- MUFFLER MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SILENCER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- STYLE:
- SHORT
$449.99Qty in Cart: 0Quantity:Price:$449.99Subtotal: -
FMF Factory 4.1 RCT Muffler - Aluminum 043364
FMF
$599.99If you're serious about extracting maximum horsepower while reducing unsprung weight, the FMF Factory 4.1 RCT represents a measurable upgrade over stock. The dual Resonance Chamber Technology™ design delivers consistent power gains across the entire RPM...18211857- SKU:
- 18211857
- Availability:
- Ships Same Business Day
- Weight:
- 7.20 LBS
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- FACTORY 4.1 RCT
- END CAP MATERIAL:
- CARBON FIBER
- UNITS:
- EACH
$599.99Qty in Cart: 0Quantity:Price:$599.99Subtotal: -
FMF Turbinecore 2.1 Muffler 025231
FMF
$269.99If you're running a high-revving machine on technical terrain, exhaust backpressure and heat management directly impact your power delivery and reliability. The FMF Turbinecore 2.1 combines straight-through flow characteristics with proven dampening...18211864- SKU:
- 18211864
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
- MODEL:
- TURBINECORE 2.1
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- END CAP STYLE:
- SLASH-CUT
- MUFFLER MATERIAL:
- ALUMINUM
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SILENCER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- ROUND
$269.99 -
FMF Powercore 2 Silencer 024070
FMF
$199.99The FMF Powercore 2 Silencer is the go-to choice for 2-stroke racers who demand consistent performance across varying conditions—whether you're chasing lap times on a closed course or pushing through aggressive terrain. Its proven elliptical design with...18211874- SKU:
- 18211874
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- END CAP STYLE:
- CONICAL
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 2
- STYLE:
- ELLIPTICAL
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- MATERIAL:
- ALUMINUM
- BASE COLOR:
- SILVER
- END CAP COLOR/FINISH:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- TYPE:
- SLIP-ON SILENCER
- RIDING STYLE:
- OFF-ROAD
$199.99Qty in Cart: 0Quantity:Price:$199.99Subtotal: -
FMF Turbinecore 2 Silencer 024071
FMF
$219.99If you're running a high-revving engine, backpressure and exhaust noise can limit performance and reliability. The FMF Turbinecore 2 delivers a straight-through design that maximizes flow while the exclusive Turbine Dampening System absorbs destructive...18211875- SKU:
- 18211875
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- END CAP STYLE:
- CONICAL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- STYLE:
- OVAL
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- TURBINECORE 2
$219.99Qty in Cart: 0Quantity:Price:$219.99Subtotal: -
FMF PowerCore 4 HEX Muffler 044451
FMF
$399.99The FMF PowerCore 4 HEX Muffler delivers measurable gains in power and torque while maintaining the durability you need for sustained high-performance operation. Its advanced internal geometry maximizes exhaust flow without sacrificing longevity, making...18211881- SKU:
- 18211881
- Availability:
- Ships Same Business Day
- Weight:
- 7.20 LBS
- UNITS:
- EACH
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4 HEX
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
$399.99 -
FMF Q4 HEX Muffler 044452
FMF
$449.99The FMF Q4 HEX Muffler delivers measurable power gains across the entire RPM range while reducing weight and noise—letting you feel the performance benefits rather than just hear them. Its multi-stage packing and proprietary chamber design maximize...18211882- SKU:
- 18211882
- Availability:
- Ships Same Business Day
- Weight:
- 7.20 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- MODEL:
- Q4 HEX
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$449.99Qty in Cart: 0Quantity:Price:$449.99Subtotal: -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 044455
FMF
$849.99If you're serious about extracting maximum power from your machine while cutting unnecessary weight, the FMF Factory 4.1 RCT is the exhaust system that delivers across the entire RPM range. Built from aerospace-grade titanium and engineered in-house at...18211885- SKU:
- 18211885
- Availability:
- Ships Same Business Day
- Weight:
- 7.90 LBS
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- TITANIUM
- END CAP MATERIAL:
- CARBON FIBER
- UNITS:
- EACH
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- TITANIUM
$849.99
