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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Pro Circuit Platinum Pipe KTM 125 SX 2023-2025 0852312
PRO CIRCUIT
$352.95Stock exhaust systems limit your KTM 125 SX's potential—restrictive flow robs you of horsepower and throttle response when you need it most. The Pro Circuit Platinum Pipe delivers measurable improvements in scavenging efficiency and peak power, while...18220544- SKU:
- 18220544
- Availability:
- Ships Same Business Day
- Weight:
- 4.45 LBS
$352.95 -
MOOSE RACING Adventure Bike Universal Heat Shield - 3" x 6" PFD1325PF
MOOSE RACING
$32.95Adventure riding exposes your bike to extreme heat conditions, and unprotected side panels or gear bags melting into your exhaust isn't just uncomfortable—it's a safety hazard that can derail your trip. This universal heat shield provides a simple,...18611726- SKU:
- 18611726
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
$32.95 -
Pro Circuit Ti-6 Exhaust System for Honda CRF450R 2019-2026 0322445F
PRO CIRCUIT
$1,536.95The Pro Circuit Ti-6 Exhaust System delivers measurable gains in power and torque across the entire RPM band while trimming rotational mass—critical for both track performance and handling responsiveness. Constructed from premium titanium, this system...18202043- SKU:
- 18202043
- Availability:
- Ships Same Business Day
- Weight:
- 12.00 LBS
$1,536.95 -
Pro Circuit T-6 Slip-On Muffler for 2019-2024 Yamaha YZ250F 0131925A
PRO CIRCUIT
$799.95The Pro Circuit T-6 Slip-On Muffler is engineered to unlock measurable horsepower gains while delivering the aggressive exhaust note that serious riders demand. By optimizing exhaust scavenging and reducing backpressure, this muffler improves both...18212090- SKU:
- 18212090
- Availability:
- Ships Same Business Day
- Weight:
- 11.30 LBS
$799.95 -
Pro Circuit T-6 Exhaust System Stainless Steel 2024 Kawasaki KX 450 0122445G
PRO CIRCUIT
$1,198.95The Pro Circuit T-6 exhaust system unlocks measurable gains in horsepower and torque while shedding unnecessary weight—critical improvements for both track performance and trail responsiveness on your 2024 Kawasaki KX 450. A stainless steel construction...18202042- SKU:
- 18202042
- Availability:
- Ships Same Business Day
- Weight:
- 13.65 LBS
$1,198.95 -
Pro Circuit Ti-6 Pro Titanium Exhaust System for 2024 Kawasaki KX450 0322445FP
PRO CIRCUIT
$1,536.95The Pro Circuit Ti-6 Pro Titanium Exhaust System delivers measurable gains in horsepower and throttle response while trimming unsprung weight that directly improves handling and acceleration. If you're serious about maximizing your 2024 Kawasaki KX450's...18202044- SKU:
- 18202044
- Availability:
- Ships Same Business Day
- Weight:
- 11.60 LBS
$1,536.95 -
On Sale
FMF Factory 4.1 RCT Exhaust System - Titanium - Carbon End Cap 042406
FMF
MSRP: $1,374.99Now: $1,169.00Was: $1,374.99The FMF Factory 4.1 RCT exhaust system delivers measurable horsepower and torque gains while shedding unnecessary weight—critical advantages whether you're chasing lap times or pushing peak performance on a closed course. Titanium construction paired...18202046- SKU:
- 18202046
- Availability:
- Ships Same Business Day
- Weight:
- 11.70 LBS
MSRP: $1,374.99Now: $1,169.00Was: $1,374.99 -
On Sale
FMF Factory 4.1 RCT Exhaust System - Aluminum - Stainless Steel Header - Carbon Fiber End Cap 044477
FMF
MSRP: $1,074.99Now: $914.00Was: $1,074.99The FMF Factory 4.1 RCT exhaust system delivers measurable power gains through advanced resonance chamber technology while reducing unsprung weight and improving chassis balance. Its compact design and aerospace-grade construction make it the choice for...18202047- SKU:
- 18202047
- Availability:
- Ships Same Business Day
- Weight:
- 9.50 LBS
MSRP: $1,074.99Now: $914.00Was: $1,074.99 -
On Sale
FMF Factory 4.1 RCT Exhaust System - Titanium - Carbon Fiber End Cap 044478
FMF
MSRP: $1,374.99Now: $1,169.00Was: $1,374.99If you're chasing lap times on a closed course, rotating mass matters—and the FMF Factory 4.1 RCT moves the muffler closer to your motor to centralize weight where it counts. The titanium construction combined with aerospace-grade materials delivers...18202048- SKU:
- 18202048
- Availability:
- Ships Same Business Day
- Weight:
- 10.45 LBS
MSRP: $1,374.99Now: $1,169.00Was: $1,374.99 -
On Sale
FMF MegaBomb Header - Stainless Steel 042399
FMF
MSRP: $374.99Now: $319.00Was: $374.99The FMF MegaBomb Header is engineered to maximize exhaust scavenging and reduce back-pressure, delivering measurable gains in horsepower and throttle response on closed-course competition vehicles. Built from stainless steel, this header resists thermal...18220549- SKU:
- 18220549
- Availability:
- Ships Same Business Day
- Weight:
- 3.65 LBS
MSRP: $374.99Now: $319.00Was: $374.99 -
On Sale
FMF SX MegaBomb Header - Titanium 042400
FMF
MSRP: $474.99Now: $404.00Was: $474.99The FMF SX MegaBomb Header delivers measurable power gains and aggressive throttle response by optimizing exhaust scavenging and reducing backpressure in high-RPM environments. Built from titanium for maximum durability without excess weight, this header...18220550- SKU:
- 18220550
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
MSRP: $474.99Now: $404.00Was: $474.99 -
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
