Dirt Bike 4-Stroke Mufflers
Upgrade to 4-stroke mufflers engineered for maximum efficiency and sound control. These high-performance components enhance power delivery while delivering a smoother, quieter ride. Perfect for competitive racing or casual trail rides, our dirt bike 4-stroke mufflers ensure top-tier performance with lasting durability.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
FMF Factory 4.1 RCT Muffler - Anodized Titanium 041587
FMF
$749.99If you're serious about extracting maximum performance from your machine, the FMF Factory 4.1 RCT muffler delivers measurable power gains across the entire RPM band without the weight penalty of...18211978- SKU:
- 18211978
- Availability:
- Ships Same Business Day
- Weight:
- 6.89 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STRAIGHT CAN
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- MUFFLER MATERIAL:
- TITANIUM
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
$749.99 -
FMF Powercore 4 Muffler 041584
FMF
$359.99If you're looking to unlock measurable gains across your entire power band without compromising durability or reliability, the FMF Powercore 4 Muffler delivers real performance where it counts. The...18211966- SKU:
- 18211966
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- END CAP STYLE:
- CONICAL
- MODEL:
- POWERCORE 4
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- BASE COLOR:
- SILVER
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
$359.99 -
FMF Mini PowerCore 4 Slip-On Muffler - with Spark Arrestor 041582
FMF
$239.99If you're running a small-displacement or mini bike engine and want genuine performance gains without breaking your budget, the FMF Mini PowerCore 4 delivers measurable improvements in throttle...18211965- SKU:
- 18211965
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- FEATURES:
- WITH SPARK ARRESTOR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- MINI POWERCORE 4
- PRODUCT NAME:
- MUFFLER
$239.99 -
FMF Mini PowerCore 4 Slip-On Muffler - without Spark Arrestor - CRF125F '19+ 041581
FMF
$209.99The stock muffler on your CRF125F is costing you power and adding unnecessary weight. This FMF Mini PowerCore 4 slip-on delivers a measurable boost in throttle response and acceleration while...18211964- SKU:
- 18211964
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- FEATURES:
- WITHOUT SPARK ARRESTOR
- MODEL:
- MINI POWERCORE 4
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$209.99 -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 044429
FMF
$799.99If you're serious about extracting maximum performance from your machine while reducing unsprung weight, the FMF Factory 4.1 RCT delivers measurable gains across the entire RPM band. The advanced...18211612- SKU:
- 18211612
- Availability:
- Ships Same Business Day
- Weight:
- 6.40 LBS
- PRODUCT NAME:
- MUFFLER
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- CARBON FIBER
- MUFFLER MATERIAL:
- TITANIUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
$799.99 -
FMF Q4 HEX Muffler 044426
FMF
$449.99The FMF Q4 HEX Muffler delivers measurable power gains across the entire RPM range while reducing weight and noise—letting you feel the performance improvement rather than just hear it. Its...18211609- SKU:
- 18211609
- Availability:
- Ships Same Business Day
- Weight:
- 8.43 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- END CAP MATERIAL:
- STAINLESS STEEL
- WEIGHT IMPERIAL:
- 6.1 LB
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- MODEL:
- Q4 HEX
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$449.99Qty in Cart: 0Quantity:Price:$449.99Subtotal: -
FMF PowerCore 4 HEX Muffler 044423
FMF
$449.99If you're looking to unlock measurable gains in power and torque while maintaining durability on the track or trail, the FMF PowerCore 4 HEX Muffler delivers both performance and longevity. This...18211606- SKU:
- 18211606
- Availability:
- Ships Same Business Day
- Weight:
- 8.12 LBS
- MODEL:
- POWERCORE 4 HEX
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- END CAP MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
$449.99 -
FMF Powercore 4 HEX Muffler 045645
FMF
$449.99If you're looking to extract real gains from your engine without compromising durability, the FMF Powercore 4 HEX delivers measurable increases in power and torque through superior flow dynamics. The...18211998- SKU:
- 18211998
- Availability:
- Ships Same Business Day
- Weight:
- 6.10 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$449.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 044453
FMF
$649.99If you're looking to unlock measurable power gains across your entire RPM range without sacrificing reliability, the FMF Factory 4.1 RCT delivers. This muffler combines proven engineering with...18211883- SKU:
- 18211883
- Availability:
- Ships Same Business Day
- Weight:
- 7.80 LBS
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
$649.99 -
FMF Powercore 2.1 Muffler - Titanium 025254
FMF
$449.99The FMF Powercore 2.1 Titanium muffler is engineered for 4-stroke machines that demand consistent power delivery across the entire RPM range without sacrificing durability. Its large-diameter...18211915- SKU:
- 18211915
- Availability:
- Ships Same Business Day
- Weight:
- 4.14 LBS
- PIPE MATERIAL:
- TITANIUM
- UNITS:
- EACH
- END CAP MATERIAL:
- TITANIUM
- MODEL:
- POWERCORE 2.1
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- MUFFLER MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SILENCER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$449.99 -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 045648
FMF
$649.99If you're serious about extracting maximum power from your machine while cutting unnecessary weight, the FMF Factory 4.1 RCT delivers measurable gains across the entire RPM range. Its compact design...18212001- SKU:
- 18212001
- Availability:
- Ships Same Business Day
- Weight:
- 6.25 LBS
- PIPE MATERIAL:
- TITANIUM
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- MUFFLER MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- MUFFLER
$649.99 -
FMF Powercore 2.1 Shorty Muffler 025253
FMF
$239.99If you're serious about maximizing your bike's performance while keeping weight minimal, the FMF Powercore 2.1 Shorty Muffler is the benchmark exhaust system others are still chasing. Its lightweight...18211914- SKU:
- 18211914
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SILENCER
- STYLE:
- SHORT
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 2.1 SHORTY
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
$239.99Qty in Cart: 0Quantity:Price:$239.99Subtotal: -
On Sale
Pro Circuit T-6 Slip-On Silencer Kawasaki KX250F 2020 0122025A
PRO CIRCUIT
MSRP: $799.95Now: $719.96Was: $799.95The Pro Circuit T-6 Slip-On Silencer delivers measurable gains in power delivery and throttle response for your 2020 Kawasaki KX250F while shedding unnecessary weight. Its asymmetrical design...18211976- SKU:
- 18211976
- Availability:
- Ships Same Business Day
- Weight:
- 9.90 LBS
- MODEL:
- T-6
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SILENCER
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
MSRP: $799.95Now: $719.96Was: $799.95 -
On Sale
Pro Circuit T-6 Slip-On Silencer Husqvarna FE 350 2020-2022 0162035A
PRO CIRCUIT
MSRP: $649.95Now: $584.96Was: $649.95A slip-on exhaust upgrade delivers measurable power gains and improved throttle response on your Husqvarna FE 350, while the removable spark arrestor keeps you competition-legal and trail-ready. Pro...18212032- SKU:
- 18212032
- Availability:
- Ships Same Business Day
- Weight:
- 8.70 LBS
- MODEL:
- T-6
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
MSRP: $649.95Now: $584.96Was: $649.95 -
On Sale
Pro Circuit T-6 Slip-On Silencer for Kawasaki KLX230R 2020-2022 0122023A
PRO CIRCUIT
MSRP: $512.95Now: $461.66Was: $512.95If you're running a KLX230R, factory exhaust is costing you power and adding unnecessary weight. The Pro Circuit T-6 slip-on delivers measurable gains in mid-range torque while cutting rotational...18212014- SKU:
- 18212014
- Availability:
- Ships Same Business Day
- Weight:
- 7.90 LBS
- TYPE:
- SLIP-ON
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- END CAP STYLE:
- CONICAL
- MUFFLER MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- T-6
MSRP: $512.95Now: $461.66Was: $512.95 -
On Sale
Pro Circuit T-6 Slip-On Silencer for Kawasaki KLX300R 2020-2022 0122030A
PRO CIRCUIT
MSRP: $512.95Now: $461.66Was: $512.95The Pro Circuit T-6 slip-on delivers measurable gains in mid-range power and throttle response for the KLX300R while keeping your bike street-legal and trail-compliant. A lightweight aluminum...18212015- SKU:
- 18212015
- Availability:
- Ships Same Business Day
- Weight:
- 7.98 LBS
- END CAP STYLE:
- CONICAL
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
- BASE COLOR:
- SILVER
- MODEL:
- T-6
MSRP: $512.95Now: $461.66Was: $512.95 -
On Sale
Pro Circuit T-6 Stainless Slip-On Exhaust Honda CRF450X 2019-2024 0111945GXA
PRO CIRCUIT
MSRP: $799.00Now: $719.10Was: $799.00The Pro Circuit T-6 slip-on exhaust unlocks measurable performance gains for your CRF450X by optimizing exhaust scavenging and shedding unnecessary weight. Unlike restrictive stock systems, the...18211968- SKU:
- 18211968
- Availability:
- Ships Same Business Day
- Weight:
- 9.50 LBS
- PRODUCT NAME:
- SILENCER
- MODEL:
- T-6
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
MSRP: $799.00Now: $719.10Was: $799.00 -
On Sale
Pro Circuit T-6 Slip-On Silencer KTM 250 SX-F 2019-2022 0151925A
PRO CIRCUIT
MSRP: $649.95Now: $584.96Was: $649.95The Pro Circuit T-6 Slip-On Silencer delivers measurable gains in exhaust scavenging and throttle response for your 250 SX-F, while the stainless steel construction resists corrosion through seasons...18211934- SKU:
- 18211934
- Availability:
- Ships Same Business Day
- Weight:
- 8.40 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- MODEL:
- T-6
- PRODUCT NAME:
- SILENCER
- UNITS:
- EACH
MSRP: $649.95Now: $584.96Was: $649.95 -
On Sale
Pro Circuit T-6 Slip-On Exhaust KTM 350 SX-F 2019-2022 0151935A
PRO CIRCUIT
MSRP: $649.95Now: $584.96Was: $649.95The Pro Circuit T-6 Slip-On Exhaust delivers measurable gains in throttle response and mid-range power for your KTM 350 SX-F while shedding unnecessary weight. Built with stainless steel construction...18211935- SKU:
- 18211935
- Availability:
- Ships Same Business Day
- Weight:
- 8.40 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- T-6
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SILENCER
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
MSRP: $649.95Now: $584.96Was: $649.95 -
On Sale
Pro Circuit T-6 Slip-On Exhaust Honda CRF450R 2019-2020 0111945A2
PRO CIRCUIT
MSRP: $1,045.95Now: $941.36Was: $1,045.95The Pro Circuit T-6 Slip-On Exhaust delivers measurable power gains and refined throttle response for your CRF450R, while the lightweight construction means better acceleration and easier handling on...18211946- SKU:
- 18211946
- Availability:
- Ships Same Business Day
- Weight:
- 16.80 LBS
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SILENCER
- MODEL:
- T-6
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- PAIR
- END CAP MATERIAL:
- STAINLESS STEEL
MSRP: $1,045.95Now: $941.36Was: $1,045.95
