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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On Sale
POLISPORT Armadillo Long Head Pipe Guard - Grey 8483800006
POLISPORT
MSRP: $75.99Now: $49.00Was: $75.99Exhaust header damage costs money and downtime—the POLISPORT Armadillo Long Head Pipe Guard eliminates both with dual-material protection that won't compromise performance. Built from stainless steel and silicone, this guard shields your headpipe from...18611449- SKU:
- 18611449
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
MSRP: $75.99Now: $49.00Was: $75.99 -
FMF Quiet Core Insert - 4.1 RCT 040689
FMF
$39.99If you're running FMF's 4.1 RCT exhaust system but need to dial in the noise levels for track regulations or street legality, the Quiet Core Insert is your direct solution. This replacement core reduces sound output without sacrificing the scavenging...18611666- SKU:
- 18611666
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$39.99 -
FMF MegaBomb Header - Stainless Steel - YZ450F 044475
FMF
$424.99The FMF MegaBomb Header is engineered for closed-course competition where every millisecond of performance counts. By optimizing exhaust scavenging and reducing back-pressure, this stainless steel header unlocks peak horsepower and torque delivery across...18220539- SKU:
- 18220539
- Availability:
- Ships Same Business Day
- Weight:
- 3.47 LBS
$424.99 -
FMF MegaBomb Header - Titanium - YZ450F 044476
FMF
$524.99The FMF MegaBomb Header delivers measurable power gains and superior heat management for YZ450F competition machines. Built from lightweight titanium, this header reduces rotational mass while withstanding extreme exhaust temperatures, giving you the...18220540- SKU:
- 18220540
- Availability:
- Ships Same Business Day
- Weight:
- 2.89 LBS
$524.99 -
MOOSE RACING Pipe Guard MPG12521
MOOSE RACING
$159.95Exhaust pipe guards protect your engine's hottest component from impact damage during aggressive riding and crashes—essential coverage that prevents costly repairs and keeps your bike running reliably. The MOOSE RACING Pipe Guard MPG12521 wraps your...18611667- SKU:
- 18611667
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
$159.95 -
Pro Circuit T-6 Stainless Steel Exhaust System for 2024 Kawasaki KX450 0122445G
PRO CIRCUIT
$1,102.95The Pro Circuit T-6 Stainless Steel Exhaust System for your 2024 Kawasaki KX450 is engineered to maximize exhaust scavenging and deliver measurable gains in horsepower and mid-range torque where it matters most. A lightweight, corrosion-resistant...18202020- SKU:
- 18202020
- Availability:
- Ships Same Business Day
- Weight:
- 11.50 LBS
$1,102.95 -
Pro Circuit T-6 Exhaust System for 2021-2024 Kawasaki KX250F XC 0322125F
PRO CIRCUIT
$1,396.95The Pro Circuit T-6 exhaust system transforms your 2021-2024 Kawasaki KX250F XC by extracting measurable gains in horsepower and throttle response across the entire RPM band. A precision-engineered header and tuned muffler chamber work together to reduce...18202022- SKU:
- 18202022
- Availability:
- Ships Same Business Day
- Weight:
- 11.60 LBS
$1,396.95 -
Pro Circuit Ti-6 Pro Exhaust System KTM 450 SX-F 2022-2025 0352245FP
PRO CIRCUIT
$1,396.95The Pro Circuit Ti-6 Pro Exhaust System is engineered to unlock measurable gains in horsepower and torque across the full RPM range of your KTM 450 SX-F, delivering the responsiveness competitive riders demand. By reducing backpressure and optimizing...18202028- SKU:
- 18202028
- Availability:
- Ships Same Business Day
- Weight:
- 11.40 LBS
$1,396.95 -
Pro Circuit T-6 Slip-On Muffler for 2024-2025 Kawasaki KX450F 0112225A
PRO CIRCUIT
$799.95The Pro Circuit T-6 Slip-On Muffler is engineered to unlock measurable gains in exhaust scavenging and throttle response on your 2024-2025 KX450F. By reducing backpressure and optimizing flow characteristics, this stainless steel muffler delivers both a...18212069- SKU:
- 18212069
- Availability:
- Ships Same Business Day
- Weight:
- 11.00 LBS
$799.95 -
MOOSE RACING Pipe Guard - Carbon Fiber MPG25023
MOOSE RACING
$187.00Pipe guards protect your exhaust system from impact damage during aggressive riding or racing conditions, preventing costly repairs and maintaining optimal exhaust flow. This MOOSE RACING carbon fiber guard combines lightweight construction with superior...18611669- SKU:
- 18611669
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
$187.00 -
MOOSE RACING Pipe Guard - Carbon Fiber BPG-20021
MOOSE RACING
$187.00Pipe damage can sideline your bike and drain your wallet faster than a blown motor. The MOOSE RACING Pipe Guard shields your exhaust from rocks, crashes, and abrasion—the inevitable hazards of aggressive riding. Built from carbon fiber, it delivers...18611670- SKU:
- 18611670
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$187.00 -
MOOSE RACING Spark Arrestor End Cap 40-9021
MOOSE RACING
$119.95A spark arrestor end cap is essential safety equipment for off-road and competition riding, preventing hot exhaust particles from igniting dry grass and brush—a critical concern in sensitive environments and sanctioned events. MOOSE RACING's 40-9021...18611671- SKU:
- 18611671
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$119.95 -
HELIX Exhaust Springs - Zinc - 57 mm - 10-Pack 495-5710
HELIX
$33.95Exhaust manifold leaks and loose heat shielding can severely compromise engine performance and create dangerous underhood conditions. The HELIX Exhaust Springs deliver consistent clamping force to keep your exhaust system sealed and vibration-free,...18602373- SKU:
- 18602373
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$33.95 -
HELIX Exhaust Springs - Zinc - 60 mm 495-6002
HELIX
$7.95Exhaust springs are a critical component for maintaining proper manifold alignment and preventing heat-related warping. The HELIX 60 mm Exhaust Springs provide reliable support and vibration isolation, protecting your exhaust system from stress fractures...18602374- SKU:
- 18602374
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
$7.95 -
HELIX Exhaust Springs - Zinc - 60 mm - 10-Pack 495-6010
HELIX
$33.95Exhaust springs are critical for maintaining secure, vibration-resistant connections in high-temperature exhaust systems. HELIX Exhaust Springs provide reliable hold-down force that prevents thermal cycling damage and unwanted movement, ensuring your...18602375- SKU:
- 18602375
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$33.95 -
HELIX Exhaust Springs - Zinc - 63 mm 495-6302
HELIX
$7.95Exhaust springs are critical fastening components that secure your exhaust system while accommodating thermal expansion and vibration cycles. Quality springs prevent costly rattles, leaks, and component separation under high-heat operating conditions...18602376- SKU:
- 18602376
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
$7.95 -
HELIX Exhaust Springs - Zinc - 63 mm - 10-Pack 495-6310
HELIX
$33.95Exhaust manifold leaks compromise both performance and longevity—HELIX Exhaust Springs provide the secure, vibration-resistant fastening your high-heat exhaust system demands. These zinc-plated springs maintain consistent clamp pressure across thermal...18602377- SKU:
- 18602377
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$33.95 -
HELIX Exhaust Springs - Zinc - 67 mm 495-6702
HELIX
$7.95Exhaust springs are critical fastening components that secure your exhaust system while accommodating thermal expansion and vibration. These HELIX springs maintain consistent clamping force throughout the temperature cycling that occurs during hard...18602378- SKU:
- 18602378
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
$7.95 -
HELIX Exhaust Springs - Zinc - 67 mm - 10-Pack 495-6710
HELIX
$33.95Exhaust manifolds and heat shields demand springs that won't fail under thermal cycling and constant vibration. HELIX Exhaust Springs deliver reliable fastening without the brittleness of standard hardware, keeping your exhaust system secure through...18602379- SKU:
- 18602379
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$33.95 -
HELIX Exhaust Springs - Zinc - 70 mm 495-7002
HELIX
$7.95Exhaust springs are critical for maintaining proper header and manifold alignment, preventing vibration-induced cracking and component failure over time. HELIX's zinc-plated steel construction resists corrosion while delivering consistent clamping force...18602380- SKU:
- 18602380
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
$7.95
