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 PowerCore 4 HEX Muffler 041586
FMF
$399.99Overall increase in power and torque, Durable stainless steel and aluminum construction, Space Age internal packing material for maximum longevity, Internal shape of core uses Hi-Flo technology, Enhanced sonic evacuation provides for higher flow and...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
$299.99Computer designed and dyno tested to make power gains where each machine needs them the most, Tru-Flo stamping process ensures a perfect fit and optimum performance, Constructed of strong 19-gauge steel with a nickel-plated finish18200080- 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 -
FMF Fatty Pipe 025073
FMF
$299.99Computer designed and dyno tested to make power gains where each machine needs them the most, Tru-Flo stamping process ensures a perfect fit and optimum performance, Constructed of strong 19-gauge steel with a nickel-plated finish18200084- SKU:
- 18200084
- Availability:
- Ships Same Business Day
- Weight:
- 5.40 LBS
- COLOR/FINISH:
- NICKEL-PLATED
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MODEL:
- GOLD SERIES FATTY
- PRODUCT NAME:
- HEAD PIPE
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STEEL
$299.99 -
FMF Fatty Pipe 021040
FMF
$299.99Computer designed and dyno tested to make power gains where each machine needs them the most, Tru-Flo stamping process ensures a perfect fit and optimum performance, Constructed of strong 19-gauge steel with a nickel-plated finish18200006- SKU:
- 18200006
- Availability:
- Ships Same Business Day
- Weight:
- 7.70 LBS
- COLOR/FINISH:
- NICKEL-PLATED
- UNITS:
- KIT
- MODEL:
- GOLD SERIES FATTY
- PRODUCT NAME:
- HEAD PIPE
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF Factory Fatty Pipe - '03-'04 CR250R 021043
FMF
$299.99The Factory Fatty is reminiscent of the “works” or cone pipe once used by Factory Teams and it shares many of the same characteristics with its’ craftsmanship and material quality, Broadens and smooths out the power curve while boosting gains throughout...18200009- SKU:
- 18200009
- Availability:
- Ships Same Business Day
- Weight:
- 6.70 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MODEL:
- FACTORY FATTY
- PRODUCT NAME:
- PIPE
- TYPE:
- EXHAUST
$299.99 -
FMF Fatty Pipe 022040
FMF
$299.99Computer designed and dyno tested to make power gains where each machine needs them the most, Tru-Flo stamping process ensures a perfect fit and optimum performance, Constructed of strong 19-gauge steel with a nickel-plated finish18200010- SKU:
- 18200010
- Availability:
- Ships Same Business Day
- Weight:
- 7.82 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
$299.99 -
FMF Fatty Pipe 024049
FMF
$299.99Computer designed and dyno tested to make power gains where each machine needs them the most, Tru-Flo stamping process ensures a perfect fit and optimum performance, Constructed of strong 19-gauge steel with a nickel-plated finish18200132- SKU:
- 18200132
- Availability:
- Ships Same Business Day
- Weight:
- 5.50 LBS
- COLOR/FINISH:
- NICKEL-PLATED
- UNITS:
- KIT
- MODEL:
- GOLD SERIES FATTY
- PRODUCT NAME:
- HEAD PIPE
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF Fatty Pipe 021044
FMF
$299.99Computer designed and dyno tested to make power gains where each machine needs them the most, Tru-Flo stamping process ensures a perfect fit and optimum performance, Constructed of strong 19-gauge steel with a nickel-plated finish18200160- SKU:
- 18200160
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- HEAD PIPE
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- COLOR/FINISH:
- NICKEL-PLATED
- MODEL:
- GOLD SERIES FATTY
- UNITS:
- KIT
$299.99 -
FMF Gnarly Pipe 024054
FMF
$299.99The FMF Gnarly pipe focuses on increasing the lower RPM horsepower and torque to get you out of the toughest terrain, When looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe...18200173- SKU:
- 18200173
- Availability:
- Ships Same Business Day
- Weight:
- 7.85 LBS
- MODEL:
- GNARLY
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- NICKEL-PLATED
- PRODUCT NAME:
- PIPE
$299.99 -
FMF Gnarly Pipe 025085
FMF
$299.99The FMF Gnarly pipe focuses on increasing the lower RPM horsepower and torque to get you out of the toughest terrain, When looking to add 4-stroke tractor like torque to your 2-stroke and you need a pipe to withstand the harsh elements, this is the pipe...18200176- SKU:
- 18200176
- Availability:
- Ships Same Business Day
- Weight:
- 6.90 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- NICKEL-PLATED
- PRODUCT NAME:
- PIPE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- STEEL
- MODEL:
- GNARLY
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF Factory Fatty Pipe - '01-'07 RM125 023058
FMF
$299.99The Factory Fatty is reminiscent of the “works” or cone pipe once used by Factory Teams and it shares many of the same characteristics with its’ craftsmanship and material quality, Broadens and smooths out the power curve while boosting gains throughout...18200225- SKU:
- 18200225
- Availability:
- Ships Same Business Day
- Weight:
- 5.50 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MODEL:
- FACTORY FATTY
- PRODUCT NAME:
- PIPE
- TYPE:
- EXHAUST
$299.99 -
FMF Powercore 4 Exhaust 044136
FMF
$279.99Hi-Flo end cap boosts all-around performance, Computer designed and dyno-tested for every 4-stroke application, Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power, A stainless steel mid-pipe mates to the...18200248- SKU:
- 18200248
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- FEATURES:
- STANDARD
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- SILVER
- MATERIAL:
- ALUMINUM
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- END CAP STYLE:
- EURO
- TYPE:
- FULL SYSTEM
- UNITS:
- KIT
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- STYLE:
- ELLIPTICAL
$279.99 -
FMF Powercore 4 Exhaust 041178
FMF
$279.99Hi-Flo end cap boosts all-around performance, Computer designed and dyno-tested for every 4-stroke application, Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power, A stainless steel mid-pipe mates to the...18200252- SKU:
- 18200252
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
- BASE COLOR:
- SILVER
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- STYLE:
- ELLIPTICAL
- TYPE:
- FULL SYSTEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- END CAP STYLE:
- EURO
- FEATURES:
- STANDARD
- MATERIAL:
- ALUMINUM
- MATERIAL:
- STAINLESS STEEL
$279.99 -
FMF Powercore 4 Exhaust 041179
FMF
$299.99Hi-Flo end cap boosts all-around performance, Computer designed and dyno-tested for every 4-stroke application, Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power, A stainless steel mid-pipe mates to the...18200253- SKU:
- 18200253
- Availability:
- Ships Same Business Day
- Weight:
- 4.05 LBS
- BASE COLOR:
- SILVER
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- STYLE:
- ELLIPTICAL
- TYPE:
- FULL SYSTEM
- FEATURES:
- WITH SPARK ARRESTOR
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- END CAP STYLE:
- EURO
- MATERIAL:
- ALUMINUM
$299.99 -
FMF Fatty Pipe 025119
FMF
$299.99Computer designed and dyno tested to make power gains where each machine needs them the most, Tru-Flo stamping process ensures a perfect fit and optimum performance, Constructed of strong 19-gauge steel with a nickel-plated finish18201108- SKU:
- 18201108
- Availability:
- Ships Same Business Day
- Weight:
- 4.90 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
$299.99 -
FMF Fatty Pipe 025130
FMF
$299.99Computer designed and dyno tested to make power gains where each machine needs them the most, Tru-Flo stamping process ensures a perfect fit and optimum performance, Constructed of strong 19-gauge steel with a nickel-plated finish18201111- SKU:
- 18201111
- Availability:
- Ships Same Business Day
- Weight:
- 6.50 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COLOR/FINISH:
- NICKEL-PLATED
- MODEL:
- GOLD SERIES FATTY
- PRODUCT NAME:
- HEAD PIPE
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$299.99 -
FMF End Cap - Stainless Steel - Straight Cut - PC4/Q4 040634
FMF
$34.99Replacement 4-Stroke Exhaust End Cap18600500- SKU:
- 18600500
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- MODEL:
- Q4
- RIDING STYLE:
- UTV
- END CAP STYLE:
- STRAIGHT-CUT
- PRODUCT NAME:
- END CAP
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
- STYLE:
- REPLACEMENT
$34.99 -
FMF RCT End Cap - Stainless Steel 040641
FMF
$49.99Includes end cap, 3/16 stainless steel rivets, and strap mounts to secure end cap to canister18600561- SKU:
- 18600561
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- MATERIAL:
- STAINLESS STEEL
- OUTSIDE DIAMETER IMPERIAL:
- 4'
- TYPE:
- EXHAUST
- END CAP STYLE:
- EURO
- PRODUCT NAME:
- END CAP
- UNITS:
- KIT
- MODEL:
- FACTORY 4.1 RCT
- RIDING STYLE:
- OFF-ROAD
$49.99 -
FMF RCT End Cap - Carbon Fiber 040643
FMF
$129.99Includes end cap, 3/16 stainless steel rivets, and strap mounts to secure end cap to canister18600563- SKU:
- 18600563
- Availability:
- Ships Same Business Day
- Weight:
- 0.54 LBS
- END CAP STYLE:
- EURO
- PRODUCT NAME:
- END CAP
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- CARBON FIBER
- OUTSIDE DIAMETER IMPERIAL:
- 4'
- MODEL:
- FACTORY 4.1 RCT
- TYPE:
- EXHAUST
$129.99 -
FMF Muffler Sleeve - Aluminum 040652
FMF
$19.99Replacement sleeves for worn out mid-pipes18600582- SKU:
- 18600582
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- LENGTH IMPERIAL:
- 4'
- RIDING STYLE:
- UTV
- TYPE:
- MID PIPE INLET SLEEVE INSERT
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- INSERT
- RIDING STYLE:
- ATV
- STYLE:
- ROUND
$19.99
