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 PowerCore 4 HEX Muffler 044404
FMF
$399.99The FMF PowerCore 4 HEX Muffler delivers measurable gains in power and torque while maintaining the durability required for serious riding conditions. Its Hi-Flo internal core geometry maximizes exhaust scavenging, translating directly to improved engine...18211534- SKU:
- 18211534
- Availability:
- Ships Same Business Day
- Weight:
- 7.70 LBS
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
$399.99 -
FMF Q4 HEX Muffler 044398
FMF
$449.99The FMF Q4 HEX Muffler delivers measurable power gains across the entire RPM range while significantly reducing weight compared to stock setups—giving you real performance without the excessive noise penalty. Its advanced multi-stage chambering and...18211544- SKU:
- 18211544
- Availability:
- Ships Same Business Day
- Weight:
- 7.33 LBS
- MODEL:
- Q4 HEX
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- END CAP MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- WEIGHT IMPERIAL:
- 6 LB
$449.99Qty in Cart: 0Quantity:Price:$449.99Subtotal: -
FMF PowerCore 4 HEX Muffler 041514
FMF
$399.99If you're running a high-performance machine, your exhaust system is either working for you or against you. The FMF PowerCore 4 HEX Muffler delivers measurable gains in power and torque while maintaining the durability needed for sustained track use or...18211555- SKU:
- 18211555
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- MUFFLER COLOR/FINISH:
- RAW
- UNITS:
- EACH
$399.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 041517
FMF
$599.99If you're serious about extracting maximum power from your engine while reducing unsprung weight, the FMF Factory 4.1 RCT Muffler delivers measurable gains across the entire RPM range. The advanced Resonance Chamber Technology™ design optimizes exhaust...18211563- SKU:
- 18211563
- Availability:
- Ships Same Business Day
- Weight:
- 9.05 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- PIPE MATERIAL:
- STAINLESS STEEL
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
$599.99 -
FMF PowerCore 4 HEX Muffler 044396
FMF
$399.99If you're running a stock muffler, you're leaving power on the table. The FMF PowerCore 4 HEX delivers measurable increases in horsepower and torque while maintaining reliability through durable construction—making it an essential upgrade for riders...18211571- SKU:
- 18211571
- Availability:
- Ships Same Business Day
- Weight:
- 6.22 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
$399.99 -
FMF PowerCore 4 HEX Muffler 044397
FMF
$399.99If you're running a high-performance engine, your stock muffler is costing you power and responsiveness. The FMF PowerCore 4 HEX delivers measurable gains in horsepower and torque by optimizing exhaust flow with proven Hi-Flo core technology and advanced...18211572- SKU:
- 18211572
- Availability:
- Ships Same Business Day
- Weight:
- 6.90 LBS
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- TYPE:
- SLIP-ON
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4 HEX
$399.99 -
FMF PowerCore 4 HEX Muffler 045553
FMF
$399.99The FMF PowerCore 4 HEX Muffler delivers measurable gains in horsepower and torque while maintaining the durability and reliability your engine demands. Built with premium stainless steel and aluminum, this muffler combines aggressive flow...18211627- SKU:
- 18211627
- Availability:
- Ships Same Business Day
- Weight:
- 5.90 LBS
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$399.99 -
FMF Q4 HEX Muffler 045556
FMF
$449.99The FMF Q4 HEX Muffler delivers measurable power gains across the entire RPM range while reducing weight and unwanted noise—letting you feel the performance difference on every ride. Its multi-stage chamber design and proprietary packing material...18211629- SKU:
- 18211629
- Availability:
- Ships Same Business Day
- Weight:
- 6.27 LBS
- UNITS:
- EACH
- MODEL:
- Q4 HEX
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- WEIGHT IMPERIAL:
- 4.9 LB
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
$449.99 -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 045561
FMF
$649.99If you're serious about extracting maximum power while keeping weight down, the FMF Factory 4.1 RCT Muffler delivers measurable gains across the entire RPM band without the fragility of longer designs. By centralizing mass closer to the engine through...18211631- SKU:
- 18211631
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- MUFFLER MATERIAL:
- TITANIUM
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- PIPE MATERIAL:
- TITANIUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$649.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 045558
FMF
$549.99If you're serious about extracting maximum performance from your machine while reducing unsprung weight, the FMF Factory 4.1 RCT delivers measurable gains across the entire RPM range without compromise. By centralizing mass closer to the motor and...18211633- SKU:
- 18211633
- Availability:
- Ships Same Business Day
- Weight:
- 6.12 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$549.99 -
FMF Fatty Pipe 025182
FMF
$299.99The FMF Fatty Pipe 025182 delivers measurable power gains by optimizing exhaust flow exactly where your machine needs it most. Computer-designed and dyno-tested engineering means you're not guessing—you're getting proven performance improvements backed...18201682- SKU:
- 18201682
- Availability:
- Ships Same Business Day
- Weight:
- 3.45 LBS
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MODEL:
- GOLD SERIES FATTY
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- KIT
- COLOR/FINISH:
- NICKEL-PLATED
- MATERIAL:
- STEEL
- PRODUCT NAME:
- HEAD PIPE
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF Factory Fatty Pipe 025183
FMF
$299.99If you're running a stock exhaust system, you're leaving measurable power on the table across your entire RPM range. The FMF Factory Fatty Pipe delivers the kind of broad, linear power gains that factory racing teams engineered into their competition...18201683- SKU:
- 18201683
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- MODEL:
- FACTORY FATTY
- TYPE:
- EXHAUST
- PRODUCT NAME:
- PIPE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- STEEL
$299.99 -
FMF Powercore 2 Silencer 025077
FMF
$199.99The FMF Powercore 2 Silencer delivers consistent performance across varied track conditions without sacrificing usable power in your RPM range. Its proven elliptical design and perforated core technology reduce back-pressure while maintaining the engine...18210080- SKU:
- 18210080
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- END CAP COLOR/FINISH:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- ELLIPTICAL
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- MATERIAL:
- ALUMINUM
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 2
- COLOR/FINISH:
- SILVER
- END CAP STYLE:
- CONICAL
$199.99 -
FMF Factory 4.1 RCT Exhaust - Titanium 042398
FMF
$1,224.99The FMF Factory 4.1 RCT Exhaust delivers measurable power gains through optimized scavenging and reduced backpressure, making it the choice for riders demanding real performance improvements. Constructed from premium titanium, this system offers...18201984- SKU:
- 18201984
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
- END CAP COLOR/FINISH:
- CARBON FIBER
- MATERIAL:
- TITANIUM
- MUFFLER MATERIAL:
- TITANIUM
- UNITS:
- EACH
- MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- TYPE:
- FULL SYSTEM
- PIPE MATERIAL:
- TITANIUM
- PRODUCT NAME:
- EXHAUST SYSTEM
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- MUFFLER COLOR/FINISH:
- BLUE ANODIZED
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- MEGABOMB
$1,224.99 -
FMF Factory 4.1 RCT Exhaust - Aluminum 042397
FMF
$974.99The FMF Factory 4.1 RCT Exhaust delivers measurable gains in horsepower and torque while maintaining street-legal sound levels—a rare combination for serious riders who refuse to compromise on performance. Its proven design has been tested in...18201985- SKU:
- 18201985
- Availability:
- Ships Same Business Day
- Weight:
- 12.20 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- EXHAUST SYSTEM
- END CAP COLOR/FINISH:
- CARBON FIBER
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER MATERIAL:
- ALUMINUM
- MUFFLER COLOR/FINISH:
- NATURAL
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- FULL SYSTEM
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- MEGABOMB
- UNITS:
- EACH
$974.99 -
FMF Powercore 4 Muffler 044448
FMF
$399.99The FMF Powercore 4 Muffler delivers measurable power gains across the entire RPM range without compromising rideability or durability. Whether you're pushing hard on the track or tackling varied terrain, this muffler balances increased horsepower and...18211028- SKU:
- 18211028
- Availability:
- Ships Same Business Day
- Weight:
- 5.30 LBS
- PRODUCT NAME:
- MUFFLER
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
- STYLE:
- OVAL
- BASE COLOR:
- SILVER
- END CAP STYLE:
- CONICAL
- MUFFLER MATERIAL:
- ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$399.99 -
FMF Powercore 4 Muffler 043095
FMF
$269.99Stock exhaust systems rob your Mini of both power and character. The FMF Powercore 4 delivers measurable horsepower gains and a more aggressive acoustic signature through a bolt-on design that requires no fabrication or tuning adjustments. If you're...18210521- SKU:
- 18210521
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- PIPE MATERIAL:
- STAINLESS STEEL
- END CAP MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- WEIGHT IMPERIAL:
- 2.6 LB
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
$269.99 -
FMF Powercore 4 Muffler 041284
FMF
$399.99If you're looking for measurable power gains without compromise, the FMF Powercore 4 Muffler delivers consistent horsepower and torque increases across the entire power curve—the kind of performance boost you'll actually feel on every ride. Built with...18210540- SKU:
- 18210540
- Availability:
- Ships Same Business Day
- Weight:
- 5.90 LBS
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
$399.99 -
FMF Q4 Muffler 041287
FMF
$449.99If you're running off-road, you need a muffler that doesn't force you to choose between noise compliance and power delivery. The FMF Q4 combines championship-proven engineering with a lightweight design that actually improves your power-to-weight ratio—a...18210543- SKU:
- 18210543
- Availability:
- Ships Same Business Day
- Weight:
- 6.35 LBS
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- MODEL:
- Q4
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
$449.99Qty in Cart: 0Quantity:Price:$449.99Subtotal: -
FMF Powercore 4 Muffler 044228
FMF
$399.99The FMF Powercore 4 Muffler delivers measurable gains across your entire power curve without sacrificing rideability or reliability. Built for riders who demand real-world performance improvements—not just noise—this muffler balances power output with...18210578- SKU:
- 18210578
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- BASE COLOR:
- SILVER
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- END CAP MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
$399.99
