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 - Aluminum 045650
FMF
$1,074.99If you're running a high-revving machine that demands both peak performance and compliance with sound regulations, the FMF Factory 4.1 RCT strikes the rare balance between unrestricted power and track-legal noise levels. The patented Resonance Chamber...18201954- SKU:
- 18201954
- Availability:
- Ships Same Business Day
- Weight:
- 9.80 LBS
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- MEGABOMB
- MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- TYPE:
- FULL SYSTEM
- END CAP MATERIAL:
- CARBON FIBER
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- EXHAUST SYSTEM
$1,074.99Qty in Cart: 0Quantity:Price:$1,074.99Subtotal: -
FMF MegaBomb Header 043309
FMF
$374.99If you're chasing mid-range power without sacrificing top-end performance, the FMF MegaBomb Header delivers the best of both worlds. Its exclusive titanium construction resists the damage that plagues traditional long headers, while the engineered tube...18220380- SKU:
- 18220380
- Availability:
- Ships Same Business Day
- Weight:
- 2.86 LBS
- MODEL:
- MEGABOMB
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- HEADER
- RIDING STYLE:
- OFF-ROAD
$374.99 -
FMF MegaBomb Header - Stainless Steel 042343
FMF
$374.99The FMF MegaBomb Header delivers measurable power gains across the low and mid-range RPM band where you need responsive throttle feel most. Its compact design resists heat damage and vibration better than extended headers, while the stainless steel...18220458- SKU:
- 18220458
- Availability:
- Ships Same Business Day
- Weight:
- 2.92 LBS
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- MODEL:
- MEGABOMB
- PRODUCT NAME:
- HEADER
- WEIGHT IMPERIAL:
- 1.5 LB
$374.99 -
FMF MegaBomb Header - Stainless Steel 044439
FMF
$424.99The FMF MegaBomb Header delivers the power characteristics you need without the compromises of traditional header designs. By combining low-end torque response with high-rpm efficiency, this stainless steel unit gives you broader powerband coverage...18220468- SKU:
- 18220468
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- MODEL:
- MEGABOMB
- UNITS:
- EACH
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- HEADER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- HEAD PIPE
$424.99 -
FMF MegaBomb Header 044449
FMF
$424.99If you're chasing reliable power across the entire RPM band without sacrificing durability or practicality, the FMF MegaBomb Header delivers a hybrid solution that outperforms traditional designs. This Ti-Metal construction header produces the responsive...18220475- SKU:
- 18220475
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- MODEL:
- MEGABOMB
- PRODUCT NAME:
- HEADER
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$424.99 -
FMF MegaBomb Header 044450
FMF
$524.99If you're chasing reliable low-end torque without sacrificing top-end power, the FMF MegaBomb Header delivers the performance characteristics of two headers in one. Its titanium construction resists the impact damage that plagues longer headers, while...18220476- SKU:
- 18220476
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- MODEL:
- MEGABOMB
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- HEADER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$524.99 -
FMF MegaBomb Header 045620
FMF
$374.99If you're looking to unlock bottom-end torque without sacrificing top-end pull, the FMF MegaBomb Header delivers the rare combination of a long header's low-end grunt and a short header's high-RPM response. Built from exclusive Ti-Metal construction,...18220480- SKU:
- 18220480
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- MODEL:
- MEGABOMB
- PRODUCT NAME:
- HEADER
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$374.99 -
FMF Fatty Pipe 025263
FMF
$299.99The FMF Fatty Gold Series pipe is engineered to deliver consistent power gains across your entire power band—from low-end torque to over-rev performance. If you're looking for a bolt-on solution that improves throttle control and overall rideability...18220489- SKU:
- 18220489
- Availability:
- Ships Same Business Day
- Weight:
- 5.30 LBS
- TYPE:
- EXHAUST
- MATERIAL:
- CARBON STEEL
- MODEL:
- FATTY
- PRODUCT NAME:
- PIPE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$299.99 -
FMF MegaBomb Header 041577
FMF
$374.99If you're running a sound-restricting muffler or need reliable low-to-mid range power without sacrificing top-end performance, the FMF MegaBomb Header delivers the best of both worlds. Its exclusive titanium construction resists heat damage and abuse...18220490- SKU:
- 18220490
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- MEGABOMB
- PRODUCT NAME:
- HEADER
$374.99 -
FMF MegaBomb Header 042379
FMF
$474.99The FMF MegaBomb Header 042379 delivers a rare combination of low-end grunt and top-end power without the fragility of traditional long headers. Its Ti-Metal construction resists damage while outperforming shorter designs, making it ideal for riders who...18220491- SKU:
- 18220491
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- MODEL:
- SX MEGABOMB
- UNITS:
- EACH
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- HEADER
$474.99 -
FMF MegaBomb Header 043368
FMF
$374.99If you're chasing mid-range power without sacrificing top-end performance, the FMF MegaBomb Header delivers the best of both worlds. Its Ti-Metal construction gives you durability and heat resistance that long headers can't match, while the hybrid design...18220492- SKU:
- 18220492
- Availability:
- Ships Same Business Day
- Weight:
- 3.22 LBS
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- MODEL:
- MEGABOMB
- PRODUCT NAME:
- HEADER
- RIDING STYLE:
- OFF-ROAD
$374.99Qty in Cart: 0Quantity:Price:$374.99Subtotal: -
FMF MegaBomb Header 045640
FMF
$474.99If you're chasing better throttle response and mid-range grunt without the fragility of a traditional long-tube header, the FMF MegaBomb 045640 delivers both in one compact package. Its exclusive titanium construction combines the power characteristics...18220494- SKU:
- 18220494
- Availability:
- Ships Same Business Day
- Weight:
- 3.86 LBS
- MODEL:
- MEGABOMB
- PRODUCT NAME:
- HEADER
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$474.99 -
FMF Megabomb Header with Midpipe - Stainless Steel 044458
FMF
$424.99A high-performance exhaust system starts with superior header design, and the FMF Megabomb delivers exactly that. This stainless steel unit reduces exhaust scavenging losses and improves volumetric efficiency across your RPM range, translating directly...18220504- SKU:
- 18220504
- Availability:
- Ships Same Business Day
- Weight:
- 4.10 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- HEADER
- RIDING STYLE:
- STREET
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- MEGABOMB
$424.99 -
FMF Megabomb Header with Midpipe - Titanium 044459
FMF
$524.99If you're serious about extracting genuine power gains across the entire RPM band, the FMF Megabomb Header with Midpipe delivers where it matters most. This titanium system combines the low-end grunt of a longer header with the high-RPM responsiveness of...18220505- SKU:
- 18220505
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- HEADER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MODEL:
- MEGABOMB
$524.99 -
FMF MegaBomb Header - Stainless Steel 045643
FMF
$524.99If you're running a tight engine bay or need immediate mid-range grunt without the long-tube commitment, the FMF MegaBomb Header delivers the power gains you're after in a compact, abuse-resistant package. Stainless steel construction means this header...18220508- SKU:
- 18220508
- Availability:
- Ships Same Business Day
- Weight:
- 3.75 LBS
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- MODEL:
- MEGABOMB
- PRODUCT NAME:
- HEADER
$524.99 -
FMF MegaBomb Header - Stainless Steel 045661
FMF
$524.99The FMF MegaBomb Header is engineered for riders running single-sided exhaust systems who demand maximum scavenging efficiency and responsive power delivery. Stainless steel construction resists corrosion while maintaining structural integrity under...18220512- SKU:
- 18220512
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- MEGABOMB
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- HEADER
$524.99 -
FMF Powercore 2 Silencer 025258
FMF
$199.99If you're running a 2-stroke engine, exhaust flow directly impacts your power delivery and throttle response. The FMF Powercore 2 Silencer delivers proven performance across varied terrain and riding conditions without sacrificing sound management. Its...18211947- SKU:
- 18211947
- Availability:
- Ships Same Business Day
- Weight:
- 2.51 LBS
- BASE COLOR:
- SILVER
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- ELLIPTICAL
- UNITS:
- EACH
- MODEL:
- POWERCORE 2
- TYPE:
- SLIP-ON SILENCER
- COLOR/FINISH:
- SILVER
- END CAP COLOR/FINISH:
- SILVER
- END CAP STYLE:
- CONICAL
$199.99 -
FMF Powercore 2 Shorty Silencer 025259
FMF
$199.99If you're running tight supercross tracks or technical courses where mid-range power makes the difference, the FMF Powercore 2 Shorty delivers tuned performance exactly where you need it. The shortened inner core and lightweight aluminum canister...18211948- SKU:
- 18211948
- Availability:
- Ships Same Business Day
- Weight:
- 2.29 LBS
- PRODUCT NAME:
- SILENCER
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- BASE COLOR:
- SILVER
- MODEL:
- POWERCORE 2 SHORTY
- MUFFLER MATERIAL:
- ALUMINUM
$199.99 -
FMF Turbinecore 2 Silencer 025260
FMF
$219.99If you're serious about maximizing your engine's power output without sacrificing reliability, exhaust restriction is costing you performance. The FMF Turbinecore 2 Silencer eliminates backpressure with its straight-through design while the exclusive...18211949- SKU:
- 18211949
- Availability:
- Ships Same Business Day
- Weight:
- 3.13 LBS
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- TURBINECORE 2
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
$219.99 -
FMF Powercore 2 Silencer 025261
FMF
$199.99The FMF Powercore 2 Silencer delivers the performance consistency that serious 2-stroke racers and riders demand across varying track conditions and elevations. Its proven elliptical design with perforated core technology balances optimal exhaust...18211950- SKU:
- 18211950
- Availability:
- Ships Same Business Day
- Weight:
- 2.82 LBS
- COLOR/FINISH:
- SILVER
- END CAP COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- MUFFLER
- BASE COLOR:
- SILVER
- MODEL:
- POWERCORE 2
- TYPE:
- SLIP-ON SILENCER
- END CAP STYLE:
- CONICAL
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- ELLIPTICAL
$199.99
