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!
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- Qty in Cart
- Quantity
- Price
- Subtotal
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MOOSE RACING Pipe Guard by E Line - Carbon Fiber MPG12523C
MOOSE RACING
$187.00Exhaust pipe damage can sideline your bike and drain your wallet—this guard prevents costly repairs before they happen. The MOOSE RACING Pipe Guard combines antiballistic composite construction with a custom-molded fit to deliver protection that won't...18611740- SKU:
- 18611740
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
$187.00 -
MOOSE RACING Pipe Guard by E Line - Carbon Fiber MPG25023C
MOOSE RACING
$187.00Exhaust pipe guards protect your bike's most vulnerable component from impact damage during crashes and trail riding. The MOOSE RACING Carbon Fiber Pipe Guard uses advanced composite materials to absorb and distribute impact forces across a wider area...18611741- SKU:
- 18611741
- Availability:
- Ships Same Business Day
- Weight:
- 1.36 LBS
$187.00 -
MOOSE RACING Pipe Guard by E Line - Carbon Fiber MPG25024PC
MOOSE RACING
$187.00Exhaust pipe damage is one of the most expensive repairs to address mid-season or mid-race, yet it's entirely preventable with proper protection. Moose Racing's carbon fiber pipe guard absorbs and distributes impact energy across a wider surface area...18611742- SKU:
- 18611742
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
$187.00 -
AKRAPOVIC Racing Line Exhaust System - Stainless Steel/Titanium - KX 250 S-K2MR9-BNTA
AKRAPOVIC
$1,188.00Track-focused performance demands an exhaust system engineered for both maximum power delivery and minimal weight penalty. The Akrapović Racing Line combines handcrafted precision with premium materials to unlock measurable horsepower gains while...18202071- SKU:
- 18202071
- Availability:
- Ships Same Business Day
- Weight:
- 10.30 LBS
$1,188.00 -
AKRAPOVIC Evolution Line Exhaust System - Titanium/Titanium - KX 250 S-K2MET9-BNTA
AKRAPOVIC
$1,714.95If you're running a KX 250 on the track, weight savings and peak power delivery are non-negotiable. The Akrapović Evolution Line exhausts system delivers both—shedding unnecessary mass while unlocking additional horsepower through optimized scavenging...18202072- SKU:
- 18202072
- Availability:
- Ships Same Business Day
- Weight:
- 10.30 LBS
$1,714.95 -
FMF Factory 4.1 RCT Exhaust System with Carbon Cap - MegaBomb Header - Stainless Steel - KX 250 042413
FMF
$1,049.99The FMF Factory 4.1 RCT exhaust system delivers measurable power gains while reducing unsprung weight through a compact, centralized design that minimizes crash damage risk. By incorporating Resonance Chamber Technology both internally and externally,...18202083- SKU:
- 18202083
- Availability:
- Ships Same Business Day
- Weight:
- 13.10 LBS
$1,049.99 -
FMF Factory 4.1 RCT Exhaust System with Carbon Cap - MegaBomb Header - Titanium - KX 250 042414
FMF
$1,374.99The Factory 4.1 RCT delivers measurable power gains and weight savings through FMF's proprietary Resonance Chamber Technology, engineered specifically for the KX 250 to optimize exhaust scavenging and midrange response. By centralizing mass closer to the...18202084- SKU:
- 18202084
- Availability:
- Ships Same Business Day
- Weight:
- 11.80 LBS
$1,374.99 -
FMF Factory 4.1 RCT Slip-On Muffler with Carbon Cap - Titanium Anodized - TF 250-X 045695
FMF
$899.99If you're running a TF 250-X on the track, you know that exhaust dynamics directly impact power delivery and handling. The FMF Factory 4.1 RCT slip-on muffler delivers measurable gains through advanced resonance chamber technology while reducing unsprung...18212160- SKU:
- 18212160
- Availability:
- Ships Same Business Day
- Weight:
- 6.40 LBS
$899.99 -
FMF Powercore 4 Hex Slip-On Muffler - KX 250 042409
FMF
$399.99If you're running a KX 250 on closed courses, backpressure is costing you power and responsiveness. The FMF Powercore 4 Hex replaces restrictive stock exhaust with optimized flow dynamics, delivering measurable gains in both peak power and mid-range...18212161- SKU:
- 18212161
- Availability:
- Ships Same Business Day
- Weight:
- 6.45 LBS
$399.99 -
FMF Q4 Hex S/A Slip-On Muffler - KX 250 042410
FMF
$449.99If you're running endurance off-road courses or closed-course competition, you need a muffler that delivers measurable power gains without sacrificing reliability or regulatory compliance. The FMF Q4 Hex S/A slip-on keeps you competitive by reducing...18212162- SKU:
- 18212162
- Availability:
- Ships Same Business Day
- Weight:
- 7.80 LBS
$449.99 -
FMF Factory 4.1 RCT Slip-On Muffler with Carbon Cap - Aluminum - KX 250 042411
FMF
$674.99The FMF Factory 4.1 RCT Slip-On Muffler delivers measurable gains in power and throttle response while reducing unsprung weight and lowering your bike's center of gravity. Its compact design minimizes vulnerability to crash damage and positions mass...18212163- SKU:
- 18212163
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
$674.99 -
FMF Factory 4.1 RCT Slip-On Muffler with Carbon Cap - Anodized Titanium - KX 250 042412
FMF
$899.99The FMF Factory 4.1 RCT slip-on muffler delivers measurable gains in power and throttle response by optimizing exhaust scavenging through Resonance Chamber Technology—all while reducing unsprung weight and centralizing mass for improved handling. Its...18212164- SKU:
- 18212164
- Availability:
- Ships Same Business Day
- Weight:
- 6.20 LBS
$899.99 -
FMF MegaBomb Header - Titanium - TF 250-X 045693
FMF
$474.99The FMF MegaBomb Header delivers the exhaust scavenging efficiency your TF 250-X demands on the closed course. Titanium construction provides unmatched heat resistance and weight savings while maintaining the structural integrity required for sustained...18220576- SKU:
- 18220576
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
$474.99 -
FMF MegaBomb Header - Stainless Steel - KX 250 F 042407
FMF
$374.99The FMF MegaBomb Header delivers measurable horsepower gains and aggressive mid-range torque by optimizing exhaust scavenging on your KX 250 F. Built from mandrel-bent stainless steel, this header resists corrosion while withstanding extreme combustion...18220577- SKU:
- 18220577
- Availability:
- Ships Same Business Day
- Weight:
- 3.35 LBS
$374.99 -
FMF MegaBomb Header - Titanium - KX 250 F 042408
FMF
$474.99The FMF MegaBomb Header for the Kawasaki KX 250 F delivers measurable gains in mid-range torque and peak horsepower by optimizing exhaust scavenging and reducing back-pressure. Its titanium construction provides superior heat resistance and durability...18220578- SKU:
- 18220578
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
$474.99 -
AKRAPOVIC Noise Damper Insert - Evolution Line - 109dB - CRF250R/RX V-TUV387
AKRAPOVIC
$82.45If you're running your CRF250R or RX on a racetrack with strict noise ordinances, this AKRAPOVIĆ Evolution Line Noise Damper Insert is your compliance solution without sacrificing the performance exhaust system you've already invested in. Rather than...18611804- SKU:
- 18611804
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
$82.45 -
AKRAPOVIC Noise Damper Insert - Evolution Line - 109dB - YZ250F/YZ250FX/YZ450F V-TUV386
AKRAPOVIC
$82.45If you're running your YZ250F, YZ250FX, or YZ450F on a racetrack with strict noise regulations, this Akrapovic Noise Damper Insert is essential to stay compliant without sacrificing your bike's exhaust flow characteristics. The Evolution Line damper...18611805- SKU:
- 18611805
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
$82.45 -
AKRAPOVIC Noise Damper Insert - Evolution Line - KX450/KX450X V-TUV385
AKRAPOVIC
$82.45If you're running your KX450 or KX450X on a racetrack with noise restrictions, compliance doesn't mean sacrificing performance. The AKRAPOVIC Noise Damper Insert for the Evolution Line is engineered to bring your exhaust output down to the required...18611806- SKU:
- 18611806
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
$82.45 -
AKRAPOVIC Evolution Line Exhaust System - Titanium - CRF450R/CRF450RX S-H4E1-FDHLT
AKRAPOVIC
$1,973.35If you're running a CRF450R or CRF450RX on the circuit, exhaust flow directly impacts throttle response, power delivery, and race-day consistency. The AKRAPOVIC Evolution Line titanium system cuts through the compromises of stock engineering—delivering...18202089- SKU:
- 18202089
- Availability:
- Ships Same Business Day
- Weight:
- 10.30 LBS
$1,973.35Qty in Cart: 0Quantity:Price:$1,973.35Subtotal: -
Pro Circuit KX 65 2002-2024 Exhaust Kit Combo R304 Works Pipe PCKX650224W
PRO CIRCUIT
$5.00If you're serious about extracting maximum power from your KX 65, the Pro Circuit Works Pipe and R-304 Silencer Combo is the exhaust upgrade that delivers measurable gains across the entire RPM range. Hand-welded AKDQ carbon steel construction paired...PCKX650224W- SKU:
- PCKX650224W
- Availability:
- Ships same business day
- Weight:
- 5.00 LBS
$5.00
