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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MOOSE RACING Pipe Guard - Pro Circuit MPGPC04
MOOSE RACING
$159.95Exhaust pipes are vulnerable to dents and impacts that rob your engine of power—even small deformations disrupt gas flow and cost you measurable horsepower. The MOOSE RACING Pipe Guard uses advanced composite engineering to shield your exhaust while...18610126- SKU:
- 18610126
- Availability:
- Ships Same Business Day
- Weight:
- 1.29 LBS
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- GUARD
- STYLE:
- PRO CIRCUIT
- TYPE:
- HEAT SHIELD
- UNITS:
- EACH
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
MOOSE RACING Pipe Guard - Pro Circuit YPGPC02
MOOSE RACING
$186.95Dented exhaust pipes rob horsepower and compromise engine efficiency—protection isn't optional if you're serious about performance. The MOOSE RACING Pipe Guard uses advanced composite materials to shield your exhaust system from impact while maintaining...18610128- SKU:
- 18610128
- Availability:
- Ships Same Business Day
- Weight:
- 1.32 LBS
- PRODUCT NAME:
- GUARD
- UNITS:
- EACH
- MATERIAL:
- CARBON FIBER
- TYPE:
- PIPE GUARD
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- PRO CIRCUIT
$186.95 -
MOOSE RACING Pipe Guard - MegaBomb YMB24
MOOSE RACING
$119.95Dents in your pipe guard don't just look bad—they rob horsepower by disrupting exhaust gas flow and cooling performance. The MOOSE RACING Pipe Guard MegaBomb YMB24 eliminates this problem with a custom-molded composite construction that's 75% stronger...18610376- SKU:
- 18610376
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- STYLE:
- MEGABOMB
- MATERIAL:
- CARBON FIBER
- TYPE:
- PIPE GUARD
- PRODUCT NAME:
- GUARD
- STYLE:
- FMF
- UNITS:
- EACH
$119.95 -
MOOSE RACING Pipe Guard - Stock HPG450X
MOOSE RACING
$119.95Pipe guards are easy to overlook until a dent robs your engine of performance and airflow. The MOOSE RACING HPG450X eliminates that vulnerability with a composite construction that outperforms traditional aluminum—delivering both protection and...18610378- SKU:
- 18610378
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- CARBON FIBER
- STYLE:
- STOCK
- TYPE:
- PIPE GUARD
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- GUARD
- UNITS:
- EACH
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
MOOSE RACING Pipe Guard - Powerbomb YPB4507
MOOSE RACING
$186.95Exhaust dents rob horsepower and compromise flow efficiency—this guard eliminates that risk entirely. The MOOSE RACING Powerbomb YPB4507 uses a carbon fiber composite that's 75% stronger than aluminum while weighing significantly less, keeping your...18610503- SKU:
- 18610503
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MATERIAL:
- CARBON FIBER
- TYPE:
- PIPE GUARD
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- GUARD
- STYLE:
- FMF
- STYLE:
- POWERBOMB
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$186.95 -
MOOSE RACING 4-Stroke Exhaust Plug DT-09-4STR
MOOSE RACING
$7.95Keeping moisture and debris out of your exhaust system during maintenance is critical to preventing corrosion and prolonged drying times. The MOOSE RACING 4-Stroke Exhaust Plug seals your pipe immediately after riding, protecting internal components from...18610557- SKU:
- 18610557
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- RIDING STYLE:
- ATV
- COLOR/FINISH:
- ORANGE
- PRODUCT NAME:
- PLUG
- RIDING STYLE:
- UTV
- STYLE:
- 4-STROKE
- TYPE:
- EXHAUST
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$7.95 -
MOOSE RACING Spec 19 Competition Packing - 750g 14584
MOOSE RACING
$40.95Muffler performance depends on proper core packing—substandard materials break down under heat and pressure, killing your sound deadening and forcing costly rebuilds. MOOSE Racing Spec 19 Competition Packing delivers the thermal stability and fiber...18601717- SKU:
- 18601717
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- COMPETITION SERIES
- PRODUCT NAME:
- MUFFLER PACKING
- TYPE:
- BULK
- WEIGHT METRIC:
- 750 G
- UNITS:
- EACH
$40.95Qty in Cart: 0Quantity:Price:$40.95Subtotal: -
MOOSE RACING Bristol Spec 19 Muffler Packing Pillow - 2 Stroke - 16" 14567
MOOSE RACING
$24.95If you're running a 2-stroke off-road machine, muffler packing degradation is a constant maintenance headache that directly impacts performance and noise control. The MOOSE RACING Bristol Spec 19 addresses this with packing material engineered to last...18601719- SKU:
- 18601719
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PILLOW PACK
- LENGTH IMPERIAL:
- 20'
- STYLE:
- 2-STROKE
- TYPE:
- MUFFLER
- UNITS:
- EACH
$24.95Qty in Cart: 0Quantity:Price:$24.95Subtotal: -
MOOSE RACING Bristol Spec 19 Muffler Packing Pillow - 4 Stroke - 15" 14677
MOOSE RACING
$34.95Muffler packing deteriorates quickly under extreme heat and vibration, forcing frequent replacements and costly downtime. The MOOSE RACING Bristol Spec 19 Muffler Packing Pillow extends service intervals to 30-40 engine hours while outlasting traditional...18601720- SKU:
- 18601720
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- RIDING STYLE:
- OFF-ROAD
- LENGTH IMPERIAL:
- 15'
- PRODUCT NAME:
- PILLOW PACK
- STYLE:
- 4-STROKE
- TYPE:
- MUFFLER
- UNITS:
- EACH
$34.95 -
MOOSE RACING Bristol Spec 19 Muffler Packing Pillow - 4 Stroke - 19" 14552
MOOSE RACING
$40.95If you're running an off-road four-stroke on a regular schedule, muffler packing degradation is a maintenance reality that cuts into your ride time and forces frequent rebuilds. The MOOSE Racing Bristol Spec 19 Packing Pillow solves this with a...18601721- SKU:
- 18601721
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- LENGTH IMPERIAL:
- 19'
- STYLE:
- 4-STROKE
- TYPE:
- MUFFLER
- UNITS:
- EACH
- PRODUCT NAME:
- PILLOW PACK
- RIDING STYLE:
- OFF-ROAD
$40.95 -
MOOSE RACING Muffler Packing -11X16X1 160-1112M
MOOSE RACING
$20.95Muffler packing degrades under sustained heat and exhaust flow, compromising your system's acoustic performance and structural integrity. This MOOSE RACING replacement packing restores proper sound dampening and thermal stability, keeping your exhaust...18602211- SKU:
- 18602211
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- MUFFLER PACKING
- WIDTH IMPERIAL:
- 11'
- LENGTH IMPERIAL:
- 16'
- RIDING STYLE:
- STREET
- STYLE:
- 4-STROKE
- UNITS:
- EACH
$20.95 -
MOOSE RACING Pillow Packing 13" 2T 14709
MOOSE RACING
$25.95Proper suspension geometry depends on precise wheel alignment and setup—and pillow pack spacers are essential for dialing in your ride height and geometry without compromising structural integrity. MOOSE RACING's pillow packing delivers the consistent,...18602222- SKU:
- 18602222
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- LENGTH IMPERIAL:
- 16'
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- 2-STROKE
- TYPE:
- MUFFLER
- UNITS:
- KIT
- PRODUCT NAME:
- PILLOW PACK
$25.95Qty in Cart: 0Quantity:Price:$25.95Subtotal: -
MOOSE RACING Competition Muffler Packing - 750g 14414
MOOSE RACING
$28.95A quality muffler repack is essential maintenance for any serious racer or high-performance enthusiast. Stock fiberglass packing degrades quickly under sustained heat and exhaust velocity, leaving you with deteriorating sound control and reduced...18600575- SKU:
- 18600575
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- PRODUCT NAME:
- MUFFLER PACKING
- RIDING STYLE:
- ATV
- TYPE:
- COMPETITION
- UNITS:
- EACH
- WEIGHT METRIC:
- 750 G
- MATERIAL:
- HIGH-TEMPERATURE FABRIC
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- STREET
$28.95Qty in Cart: 0Quantity:Price:$28.95Subtotal: -
MOOSE RACING Competition Muffler Packing - 500g 14647
MOOSE RACING
$25.95Stock muffler packing deteriorates under sustained heat and high RPMs, leading to performance loss and unwanted noise. MOOSE Racing Competition Muffler Packing delivers the same premium material trusted in professional repack cartridges—engineered to...18600060- SKU:
- 18600060
- Availability:
- Ships Same Business Day
- Weight:
- 1.14 LBS
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ATV
- TYPE:
- COMPETITION
- UNITS:
- EACH
- WEIGHT METRIC:
- 500 G
- PRODUCT NAME:
- MUFFLER PACKING
- MATERIAL:
- HIGH-TEMPERATURE FABRIC
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
$25.95Qty in Cart: 0Quantity:Price:$25.95Subtotal: -
MOOSE RACING Universal Exhaust Re-Pack Kit 14234
MOOSE RACING
$49.95Exhaust packing deteriorates over time, causing unwanted back pressure that kills horsepower—not the other way around. A blown-out silencer forces exhaust gases to turbulate, robbing your engine of the performance gains you've already paid for. This...18600037- SKU:
- 18600037
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- PRODUCT NAME:
- MUFFLER PACKING
- RIDING STYLE:
- UTV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$49.95Qty in Cart: 0Quantity:Price:$49.95Subtotal: -
MOOSE RACING Rivet Kit with Bit - 12-3/16" 14218
MOOSE RACING
$9.95Whether you're fabricating a custom chassis, repairing bodywork, or assembling aluminum components, having the right rivets and tools on hand keeps your build moving without delays. This MOOSE RACING kit gives you everything needed for clean,...18600176- SKU:
- 18600176
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- COLOR/FINISH:
- CORROSION-RESISTANT COATING
- MATERIAL:
- STEEL
- PRODUCT NAME:
- KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RIVET
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
Pro Circuit T-4 Exhaust Kawasaki KLX125 2003-2016 4S03125
PRO CIRCUIT
$349.95The PRO CIRCUIT T-4 Exhaust delivers measurable gains in throttle response and power output, backed by extensive dyno and track testing. If you're running a KLX125 and want to unlock its full potential without compromising reliability, this is the system...4S03125- SKU:
- 4S03125
- Availability:
- Ships Same Business Day
- Weight:
- 3.88 LBS
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- T4
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- RIDING STYLE:
- OFF-ROAD
- END CAP STYLE:
- CONICAL
- MATERIAL:
- ALUMINUM
- MUFFLER COLOR/FINISH:
- BRUSHED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$349.95 -
Pro Circuit T-4 Slip-On Silencer 2003 KTM 525 SX 4T00400
PRO CIRCUIT
$523.95Stock silencers rob your 525 SX of its potential—the Pro Circuit T-4 slip-on delivers measurable horsepower and torque gains across the entire power band, transforming throttle response and acceleration. Built from lightweight aluminum and stainless...4T00400- SKU:
- 4T00400
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- PRODUCT NAME:
- SILENCER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- ROUND
- FEATURES:
- WITH SPARK ARRESTOR
- MODEL:
- T-4
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER COLOR/FINISH:
- POLISHED
$523.95 -
Pro Circuit T-4 Exhaust Honda CRF70F 2004-2012 4H00070
PRO CIRCUIT
$370.95The Pro Circuit T-4 Exhaust delivers measurable gains in throttle response and power delivery for your Honda CRF70F, engineered through extensive dyno and track testing to ensure real-world performance. Whether you're competing on closed courses or...4H00070- SKU:
- 4H00070
- Availability:
- Ships Same Business Day
- Weight:
- 3.69 LBS
$370.95 -
Pro Circuit T-4 Exhaust System for Honda XR100R 1985-2000 4H85080
PRO CIRCUIT
$370.95The Pro Circuit T-4 Exhaust System delivers measurable improvements in throttle response and acceleration for the Honda XR100R, making it the choice for racers who demand repeatability across track and dyno environments. This system combines proven...4H00080- SKU:
- 4H00080
- Availability:
- Ships Same Business Day
- Weight:
- 3.28 LBS
$370.95
