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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- Price
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On Sale
FMF Powercore 4 Hex Slip-On Muffler 042401
FMF
MSRP: $399.99Now: $340.00Was: $399.99If you're serious about maximizing your machine's performance on the track, exhaust restriction is costing you horsepower and throttle response. The FMF Powercore 4 Hex Slip-On Muffler delivers the flow efficiency you need to unlock your engine's...18212091- SKU:
- 18212091
- Availability:
- Ships Same Business Day
- Weight:
- 6.75 LBS
MSRP: $399.99Now: $340.00Was: $399.99 -
On Sale
FMF Q4 Hex Slip-On Muffler 042402
FMF
MSRP: $449.99Now: $382.00Was: $449.99If you're running closed-course competition, exhaust flow and weight savings directly impact your power curve and lap times. The FMF Q4 Hex Slip-On Muffler delivers measurable performance gains through optimized internal baffling and a lightweight...18212092- SKU:
- 18212092
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
MSRP: $449.99Now: $382.00Was: $449.99 -
On Sale
FMF Factory 4.1 RCT Slip-On Muffler - Stainless Steel - Carbon Fiber Cap 042403
FMF
MSRP: $674.99Now: $574.00Was: $674.99The FMF Factory 4.1 RCT delivers measurable gains in horsepower and torque while maintaining the durability required for competitive racing. Its stainless steel construction resists corrosion and thermal stress, while the carbon fiber cap reduces...18212093- SKU:
- 18212093
- Availability:
- Ships Same Business Day
- Weight:
- 7.14 LBS
MSRP: $674.99Now: $574.00Was: $674.99 -
On Sale
FMF Factory 4.1 RCT Slip-On Muffler - Titanium - Carbon Fiber Cap 042404
FMF
MSRP: $899.99Now: $765.00Was: $899.99The FMF Factory 4.1 RCT Slip-On Muffler delivers race-proven performance with a titanium construction that reduces weight while maintaining exceptional durability under sustained high-RPM operation. Its tuned resonance chamber technology (RCT) optimizes...18212094- SKU:
- 18212094
- Availability:
- Ships Same Business Day
- Weight:
- 6.30 LBS
MSRP: $899.99Now: $765.00Was: $899.99 -
MOOSE RACING Heat Shield - Carbon Fiber MHS35023
MOOSE RACING
$187.00Your 4-stroke's header pipe is constantly exposed to thermal stress and physical damage—dings, dents, and heat degradation are inevitable without proper protection. Beyond preserving your exhaust system, an unshielded header becomes a serious hazard to...18611729- SKU:
- 18611729
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
$187.00 -
MOOSE RACING Heat Shield - Carbon Fiber MHS25023
MOOSE RACING
$187.00Header damage and heat-damaged riding gear are common issues on 4-stroke bikes—especially during sustained riding or track days. The MOOSE RACING Carbon Fiber Heat Shield MHS25023 addresses both problems with premium construction that's lightweight...18611730- SKU:
- 18611730
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
$187.00 -
MOOSE RACING Pipe Guard - Carbon Fiber MPG 12523
MOOSE RACING
$187.00A pipe guard that actually protects. Moose Racing's carbon fiber construction distributes impact forces across a wider area than aluminum alternatives, preventing concentrated damage that can compromise your exhaust system or frame. You get superior...18611731- SKU:
- 18611731
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
$187.00 -
BOLT Exhaust Pipe Spring - 12 mm x 85 mm - 4-Pack 023-20285
BOLT
$13.00Exhaust pipe springs are critical fastening components that secure exhaust systems while allowing thermal expansion and vibration absorption—essential for maintaining system integrity under high-temperature cycling. These BOLT springs provide reliable...18602455- SKU:
- 18602455
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
$13.00 -
BOLT Exhaust Pipe Spring - 9 mm x 87 mm - 4-Pack 023-20287
BOLT
$10.50Exhaust pipe springs are critical fastening components that secure exhaust systems under thermal stress and vibration. These springs maintain proper exhaust alignment while accommodating engine movement, preventing rattles, leaks, and premature component...18602456- SKU:
- 18602456
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
$10.50 -
BOLT Exhaust Hardware Kit BET.EX.2T13
BOLT
$26.99A quality exhaust system is only as reliable as its fastening components. This hardware kit eliminates common failure points—loose couplers, slipped silencers, and degraded seals—that can compromise both performance and longevity. Whether you're running...18602457- SKU:
- 18602457
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
$26.99 -
BOLT Exhaust Pipe Spring - 80 mm - 4-Pack 023-20280
BOLT
$13.00Exhaust pipe springs are critical for maintaining proper exhaust system alignment and preventing resonance vibration that can compromise performance and durability. These 80 mm springs isolate your exhaust from the chassis, reducing fatigue stress on...18602454- SKU:
- 18602454
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
$13.00 -
On Sale
FMF Megabomb Header - Titanium 045689
FMF
MSRP: $474.99Now: $404.00Was: $474.99The FMF Megabomb Header in titanium delivers a significant reduction in exhaust backpressure while maintaining structural integrity under extreme thermal cycling. Titanium construction provides superior heat resistance and longevity compared to steel...18220551- SKU:
- 18220551
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
MSRP: $474.99Now: $404.00Was: $474.99Qty in Cart: 0Quantity:Price:MSRP: $474.99Now: $404.00Was: $474.99Subtotal: -
Pro Circuit 304 Silencer KTM 65 SX 2024-2025 1052465
PRO CIRCUIT
$205.95The Pro Circuit 304 Silencer delivers genuine noise reduction without sacrificing the exhaust flow your KTM 65 SX needs for competitive performance. Its extended body design effectively dampens sound while maintaining low back-pressure, making it...18212103- SKU:
- 18212103
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
$205.95 -
Pro Circuit R-304 Silencer for KTM 65 SX 2024-2025 1152465
PRO CIRCUIT
$206.29The Pro Circuit R-304 Silencer delivers the performance exhaust characteristics your KTM 65 SX demands while maintaining street-legal sound levels and exceptional durability. Built with premium stainless steel and aluminum construction, this silencer...18212104- SKU:
- 18212104
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
$206.29 -
Pro Circuit Ti-2 Silencer KTM 65 SX 2024-2025 1152465K
PRO CIRCUIT
$446.95For closed-course racing, exhaust noise restriction is often non-negotiable—the Pro Circuit Ti-2 Silencer delivers track-legal sound dampening without sacrificing the power output your KTM 65 SX demands. By combining titanium construction with a carbon...18212105- SKU:
- 18212105
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
$446.95 -
Pro Circuit 296 Silencer KTM 65 SX 2024-2025 1352465
PRO CIRCUIT
$202.95If you're running a KTM 65 SX, you know that peak performance and staying trail-legal aren't mutually exclusive. The Pro Circuit 296 Silencer delivers U.S. Forest Service approval while maintaining your bike's power output—no tuning adjustments needed...18212106- SKU:
- 18212106
- Availability:
- Ships Same Business Day
- Weight:
- 2.52 LBS
$202.95 -
Pro Circuit Works Pipe Exhaust System KTM 65 SX 2024-2025 0752465
PRO CIRCUIT
$322.95The Pro Circuit Works Pipe exhaust system is engineered to maximize exhaust scavenging and engine breathing on your KTM 65 SX, directly translating to sharper throttle response and improved power delivery in the powerband. Hand-welded construction and...18220552- SKU:
- 18220552
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
$322.95 -
Pro Circuit Platinum Pipe Exhaust System KTM 65 SX 2024-2025 0852465
PRO CIRCUIT
$337.95The Pro Circuit Platinum Pipe Exhaust System delivers measurable gains in exhaust scavenging and engine efficiency for your KTM 65 SX, translating to sharper throttle response and improved power delivery across the rev range. Hand-welded AKDQ carbon...18220553- SKU:
- 18220553
- Availability:
- Ships Same Business Day
- Weight:
- 2.81 LBS
$337.95 -
MOOSE RACING Pipe Guard by E Line - Carbon Fiber MPG15024
MOOSE RACING
$187.00Exhaust pipe guards take the brunt of impacts during aggressive riding and racing, yet most aluminum options fail to distribute force effectively—leaving your exhaust system vulnerable to costly damage. The MOOSE RACING Pipe Guard by E Line uses...18611743- SKU:
- 18611743
- Availability:
- Ships Same Business Day
- Weight:
- 1.11 LBS
$187.00 -
MOOSE RACING Heat Shield - Carbon Fiber BHS39023
MOOSE RACING
$187.00A 4-stroke header reaches temperatures that can damage gear, burn skin, and compromise durability through repeated thermal cycles. The MOOSE RACING Carbon Fiber Heat Shield BHS39023 provides a lightweight thermal barrier that protects both your bike and...18611744- SKU:
- 18611744
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
$187.00
