Dirt Bike Exhaust Kits
Dirt Bike Exhaust Kits for Honda CRF & Yamaha YZ at JJ Motorsports
Unlock more power and lighter weight with premium dirt bike exhaust kits from JJ Motorsports, featuring full systems with headers, mid-pipes, and mufflers for superior flow, reduced weight, and aggressive sound in motocross and enduro riding. Compatible with Honda CRF and Yamaha YZ models, these Pro Circuit kits deliver bolt-on gains in horsepower, torque, and throttle response with stainless steel or titanium construction for durability.
Shop Pro Circuit exhaust systems at JJ Motorsports for race-proven performance. Explore related categories such as dirt bike silencers and mufflers for slip-ons or dirt bike air and fuel for tuning essentials.
Top Dirt Bike Exhaust Kits
- Pro Circuit T-6 Exhaust Yamaha YZ125 2014-2023 0111311G – Complete T-6 system with stainless header and aluminum muffler for 2-stroke power gains.
- Pro Circuit Ti-6 Exhaust System Honda CRF250R 2022 0312225F – Titanium full system with hex muffler for lightweight performance and crisp sound.
- Pro Circuit T-6 Exhaust System with Carbon Fiber End Cap Honda CRF450R 2022 0352245F – T-6 system with carbon end cap for reduced weight and premium styling.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
FMF Powercore 4 Exhaust 041014
FMF
$279.99The FMF Powercore 4 Exhaust is engineered for 4-stroke engines where maximum flow efficiency directly translates to measurable power gains. Its computer-optimized design and dyno-tested performance...FMF041014- SKU:
- FMF041014
- Availability:
- Ships Same Business Day
- Weight:
- 3.49 LBS
- END CAP STYLE:
- EURO
- FEATURES:
- STANDARD
- BASE COLOR:
- SILVER
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- ELLIPTICAL
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$279.99 -
FMF Powercore 4 Exhaust 040084
FMF
$299.99The FMF Powercore 4 is engineered for riders who demand measurable power gains without compromise. Computer-designed and dyno-tested across all 4-stroke platforms, this exhaust system delivers...FMF040084- SKU:
- FMF040084
- Availability:
- Ships Same Business Day
- Weight:
- 3.43 LBS
- END CAP STYLE:
- EURO
- FEATURES:
- WITH SPARK ARRESTOR
- TYPE:
- FULL SYSTEM
- UNITS:
- KIT
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- BASE COLOR:
- SILVER
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- ELLIPTICAL
$299.99 -
FMF Powercore 4 Exhaust 040083
FMF
$279.99The FMF Powercore 4 exhaust delivers measurable horsepower and torque gains through computer-optimized flow dynamics, proven on the dyno across 4-stroke platforms. Its stainless steel mid-pipe and...FMF040083- SKU:
- FMF040083
- Availability:
- Ships Same Business Day
- Weight:
- 3.17 LBS
- BASE COLOR:
- SILVER
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FULL SYSTEM
- UNITS:
- KIT
- END CAP STYLE:
- EURO
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- FEATURES:
- STANDARD
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- ELLIPTICAL
$279.99Qty in Cart: 0Quantity:Price:$279.99Subtotal: -
FMF Powercore 4 Exhaust 040080
FMF
$279.99The FMF Powercore 4 exhaust system is engineered to maximize exhaust gas evacuation on your 4-stroke, directly translating to measurable power gains and improved throttle response. Computer-designed...FMF040080- SKU:
- FMF040080
- Availability:
- Ships Same Business Day
- Weight:
- 3.24 LBS
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- ELLIPTICAL
- BASE COLOR:
- SILVER
- END CAP STYLE:
- EURO
- MATERIAL:
- ALUMINUM
- FEATURES:
- WITH SPARK ARRESTOR
- UNITS:
- KIT
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
$279.99 -
FMF Powercore 4 Exhaust 040071
FMF
$299.99If you're running a 4-stroke engine, exhaust scavenging directly impacts your power band and overall performance. The FMF Powercore 4 is computer-designed and dyno-tested to maximize exhaust gas...FMF040071- SKU:
- FMF040071
- Availability:
- Ships Same Business Day
- Weight:
- 4.45 LBS
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- ELLIPTICAL
- END CAP STYLE:
- EURO
- BASE COLOR:
- SILVER
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- FEATURES:
- WITH SPARK ARRESTOR
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$299.99 -
FMF Factory Fatty Pipe - '02-'18 YZ85 024039
FMF
$299.99If you're running a YZ85 and want a measurable boost across the entire power band without sacrificing rideability, the FMF Factory Fatty Pipe delivers the kind of refined power curve that factory...FMF024039- SKU:
- FMF024039
- Availability:
- Ships Same Business Day
- Weight:
- 4.85 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- PIPE
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- FACTORY FATTY
- TYPE:
- EXHAUST
- UNITS:
- EACH
$299.99 -
FMF Factory Fatty Pipe 023043
FMF
$299.99The FMF Factory Fatty Pipe delivers a broader, more responsive power curve across the entire RPM range—exactly what you need whether you're chasing lap times or tackling varied terrain. By combining...FMF023043- SKU:
- FMF023043
- Availability:
- Ships Same Business Day
- Weight:
- 5.30 LBS
- PRODUCT NAME:
- PIPE
- MODEL:
- FACTORY FATTY
- UNITS:
- EACH
- TYPE:
- EXHAUST
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF Factory 4.1 Exhaust - Aluminum/Stainless Steel 042380
FMF
$459.99Stock exhaust systems sacrifice performance and durability for cost-cutting compromises. The FMF Factory 4.1 delivers measurable power gains while its centralized mass design resists crash...18201966- SKU:
- 18201966
- Availability:
- Ships Same Business Day
- Weight:
- 3.94 LBS
- MUFFLER MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY 4.1
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- EXHAUST SYSTEM
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- FULL SYSTEM
$459.99 -
FMF 4.1 RCT Exhaust with MegaBomb - Anodized Titanium 045663
FMF
$1,174.99If you're serious about maximizing power delivery across your entire RPM band while trimming unnecessary weight, the FMF 4.1 RCT with MegaBomb is engineered for measurable gains. By positioning the...18201960- SKU:
- 18201960
- Availability:
- Ships Same Business Day
- Weight:
- 11.10 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MUFFLER MATERIAL:
- TITANIUM
- UNITS:
- EACH
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- TITANIUM
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
$1,174.99 -
FMF 4.1 RCT Exhaust with MegaBomb - Anodized Titanium 045654
FMF
$1,174.99If you're serious about extracting maximum power from your bike while cutting unnecessary weight, the FMF 4.1 RCT delivers measurable gains across the entire RPM range without compromise. The...18201958- SKU:
- 18201958
- Availability:
- Ships Same Business Day
- Weight:
- 9.95 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- EXHAUST SYSTEM
- MUFFLER MATERIAL:
- TITANIUM
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- FULL SYSTEM
$1,174.99 -
On Sale
FMF 4.1 RCT Exhaust with MegaBomb - Anodized Titanium 045652
FMF
MSRP: $1,174.99Now: $752.00Was: $1,174.99If you're serious about extracting maximum performance from your machine while reducing unsprung weight, the FMF 4.1 RCT Exhaust is engineered to deliver. By relocating the muffler closer to the...18201956- SKU:
- 18201956
- Availability:
- Ships Same Business Day
- Weight:
- 10.80 LBS
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- TITANIUM
- END CAP MATERIAL:
- CARBON FIBER
- MUFFLER MATERIAL:
- TITANIUM
- UNITS:
- EACH
MSRP: $1,174.99Now: $752.00Was: $1,174.99 -
FMF 4.1 RCT Exhaust with MegaBomb - Aluminum 045662
FMF
$1,074.99If you're running a dirt bike or off-road machine, exhaust performance directly impacts power delivery, weight distribution, and durability under extreme conditions. The FMF 4.1 RCT delivers...18201959- SKU:
- 18201959
- Availability:
- Ships Same Business Day
- Weight:
- 9.90 LBS
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FULL SYSTEM
- PRODUCT NAME:
- EXHAUST SYSTEM
- END CAP MATERIAL:
- CARBON FIBER
- MUFFLER MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- PIPE MATERIAL:
- STAINLESS STEEL
$1,074.99Qty in Cart: 0Quantity:Price:$1,074.99Subtotal: -
On Sale
Pro Circuit T-6 Dual Exhaust Honda CRF450R 2019-2020 0111945G2
PRO CIRCUIT
MSRP: $1,295.95Now: $1,166.36Was: $1,295.95The Pro Circuit T-6 Dual Exhaust unlocks measurable horsepower gains while shedding unnecessary weight—critical when every fraction of a second counts on the track or trail. This system delivers...18201898- SKU:
- 18201898
- Availability:
- Ships Same Business Day
- Weight:
- 18.60 LBS
- DESIGN/CONFIGURATION:
- DUAL CANISTER
- END CAP MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FULL SYSTEM
- MODEL:
- T-6
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- EXHAUST SYSTEM
MSRP: $1,295.95Now: $1,166.36Was: $1,295.95Qty in Cart: 0Quantity:Price:MSRP: $1,295.95Now: $1,166.36Was: $1,295.95Subtotal: -
On Sale
Pro Circuit Ti-6 Pro Exhaust System Suzuki RM-Z 250 2019-2025 0341925FP
PRO CIRCUIT
MSRP: $1,396.95Now: $1,257.26Was: $1,396.95The Pro Circuit Ti-6 Pro Exhaust System delivers measurable power gains and compliance with AMA/FIM noise regulations—essential for competitive racers who can't afford to sacrifice either performance...18201906- SKU:
- 18201906
- Availability:
- Ships Same Business Day
- Weight:
- 10.80 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FULL SYSTEM
- END CAP COLOR/FINISH:
- CARBON FIBER
- MATERIAL:
- TITANIUM
- MODEL:
- TI-6 PRO
- MUFFLER MATERIAL:
- TITANIUM
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- END CAP MATERIAL:
- CARBON FIBER
- MATERIAL:
- CARBON FIBER
- UNITS:
- EACH
- FEATURES:
- WITHOUT SPARK ARRESTOR
- PIPE MATERIAL:
- TITANIUM
- PRODUCT NAME:
- EXHAUST SYSTEM
MSRP: $1,396.95Now: $1,257.26Was: $1,396.95 -
On Sale
Pro Circuit T-6 Exhaust System for Suzuki RM-Z250 2019-2025 0141925G
PRO CIRCUIT
MSRP: $1,089.95Now: $980.96Was: $1,089.95The Pro Circuit T-6 Exhaust System delivers measurable gains in power and throttle response while maintaining reliable performance across competitive and recreational riding. By pairing premium...18201908- SKU:
- 18201908
- Availability:
- Ships Same Business Day
- Weight:
- 12.20 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- T-6
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- UNITS:
- EACH
MSRP: $1,089.95Now: $980.96Was: $1,089.95 -
On Sale
Pro Circuit Ti-6 Exhaust System for Suzuki RM-Z250 2019-2025 0341925F
PRO CIRCUIT
MSRP: $1,396.95Now: $1,257.26Was: $1,396.95If you're serious about extracting every bit of performance from your RM-Z250, weight savings and flow optimization are non-negotiable. The Pro Circuit Ti-6 delivers both through a full titanium...18201909- SKU:
- 18201909
- Availability:
- Ships Same Business Day
- Weight:
- 11.00 LBS
- MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- RIDING STYLE:
- OFF-ROAD
- PIPE MATERIAL:
- TITANIUM
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- END CAP MATERIAL:
- CARBON FIBER
- MATERIAL:
- TITANIUM
- MODEL:
- TI-6
- MUFFLER MATERIAL:
- TITANIUM
- UNITS:
- EACH
MSRP: $1,396.95Now: $1,257.26Was: $1,396.95 -
On Sale
Pro Circuit T-6 Titanium Exhaust System Honda CRF450X 2019-2025 0111945GX
PRO CIRCUIT
MSRP: $1,275.95Now: $1,148.36Was: $1,275.95The Pro Circuit T-6 Titanium Exhaust System delivers measurable gains in horsepower and throttle response while shedding unnecessary weight from your CRF450X. Built with stainless steel durability...18201910- SKU:
- 18201910
- Availability:
- Ships Same Business Day
- Weight:
- 12.40 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- T-6
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- FEATURES:
- WITH SPARK ARRESTOR
- MUFFLER MATERIAL:
- TITANIUM
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- STYLE:
- ASYMMETRICAL
- UNITS:
- EACH
MSRP: $1,275.95Now: $1,148.36Was: $1,275.95 -
On Sale
Pro Circuit Works Pipe KTM 250 SX 2019 0751925-O
PRO CIRCUIT
MSRP: $349.95Now: $314.96Was: $349.95The Pro Circuit Works Pipe is engineered to unlock measurable gains in horsepower and throttle response on your KTM 250 SX. A hand-welded carbon steel construction combined with CNC precision...18201911- SKU:
- 18201911
- Availability:
- Ships Same Business Day
- Weight:
- 7.10 LBS
- TYPE:
- EXHAUST
- PRODUCT NAME:
- PIPE
- COLOR/FINISH:
- RAW
- MATERIAL:
- CARBON STEEL
- UNITS:
- EACH
- MODEL:
- WORKS
- RIDING STYLE:
- OFF-ROAD
MSRP: $349.95Now: $314.96Was: $349.95 -
On Sale
Pro Circuit Platinum Pipe KTM 250 SX 2019 0851925-O
PRO CIRCUIT
MSRP: $365.95Now: $329.36Was: $365.95The Pro Circuit Platinum Pipe delivers measurable gains in mid-range power and throttle response for your KTM 250 SX, while the nickel-coated carbon steel construction resists the corrosion and...18201912- SKU:
- 18201912
- Availability:
- Ships Same Business Day
- Weight:
- 7.30 LBS
- COLOR/FINISH:
- NICKEL-PLATED
- MATERIAL:
- CARBON STEEL
- MODEL:
- OFF-ROAD
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- PLATINUM
- PRODUCT NAME:
- PIPE
- TYPE:
- EXHAUST
- UNITS:
- EACH
MSRP: $365.95Now: $329.36Was: $365.95Qty in Cart: 0Quantity:Price:MSRP: $365.95Now: $329.36Was: $365.95Subtotal: -
On Sale
Pro Circuit T-6 Exhaust System Honda CRF110F 2019-2025 0111911G
PRO CIRCUIT
MSRP: $512.95Now: $461.66Was: $512.95The Pro Circuit T-6 Exhaust System transforms your CRF110F's power delivery by optimizing exhaust scavenging and reducing backpressure—critical for extracting maximum performance from your...18201915- SKU:
- 18201915
- Availability:
- Ships Same Business Day
- Weight:
- 7.40 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- T-6
- MUFFLER MATERIAL:
- ALUMINUM
- DESIGN/CONFIGURATION:
- SINGLE CANISTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- FULL SYSTEM
- PRODUCT NAME:
- EXHAUST SYSTEM
MSRP: $512.95Now: $461.66Was: $512.95
