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
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FMF Factory 4.1 RCT Muffler - Anodized Titanium 041587
FMF
$749.99Rapid Tuning System (RTS), Shorter overall length that is less susceptible to crash damage, Massive Power gains throughout the RPM range., Huge weight savings18211978- 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
$359.99Developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable and compatible with every style of riding, Aluminum construction and stainless steel Hi-Flo end caps make for 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
$239.99Features a Hi-Flo stainless steel core and formed end caps, Aircraft grade aluminum canister, You will swear the motor has been bored and stroked with the first twist of the throttle, Pounds lighter than stock18211965- 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
$209.99Features a Hi-Flo stainless steel core and formed end caps, Aircraft grade aluminum canister, You will swear the motor has been bored and stroked with the first twist of the throttle, Pounds lighter than stock18211964- 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
$799.99The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally, In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...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 Q4 employs intricate chambers, baffles and proprietary multistage packing material, With the Q4 you don’t need to hear the power, just feel the power!, Less sound equals more ground, Power gains throughout the entire rpm range, Spark arrestor...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
$449.99 -
FMF PowerCore 4 HEX Muffler 044423
FMF
$399.99Overall increase in power and torque, Durable stainless steel and aluminum construction, Space Age internal packing material for maximum longevity, Internal shape of core uses Hi-Flo technology, Enhanced sonic evacuation provides for higher flow and...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
$399.99 -
FMF Powercore 4 HEX Muffler 045645
FMF
$399.99Overall increase in power and torque, Durable stainless steel and aluminum construction, Space Age internal packing material for maximum longevity, Internal shape of core uses Hi-Flo technology, Enhanced sonic evacuation provides for higher flow and...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
$399.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 044453
FMF
$649.99The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally, In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...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
$449.99Built to provide excellent power for today’s tracks geared toward 4-stroke machines, Smooth power curve throughout the RPM range, Large diameter canister for more tenability and longer lasting packing life, Delivers a crisp, notable sound, Optimally...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
$649.99The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally, In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering -...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
$239.99The measure which others aim for, With their lightweight titanium or extruded aluminum oval canisters mated to a perforated core, these silencers are above the competition18211914- 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
$239.99 -
On Sale
Pro Circuit T-6 Slip-On Silencer Kawasaki KX250F 2020 0122025A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Transform your riding experience with the Pro Circuit 0122025A T-6 Slip-On Silencer, expertly engineered to enhance the performance of your 2020 Kawasaki KX250F. This high-quality silencer combines lightweight materials with robust construction, ensuring...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: $590.95Now: $520.04Was: $590.95 -
On Sale
Pro Circuit T-6 Slip-On Silencer Husqvarna FE 350 2020-2022 0162035A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Pro Circuit 0162035A T-6 Slip-On Silencer for Husqvarna FE Models Elevate your riding performance with the Pro Circuit 0162035A T-6 Slip-On Silencer, meticulously crafted for Husqvarna FE models. This silencer combines advanced engineering with premium...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: $590.95Now: $520.04Was: $590.95 -
On Sale
Pro Circuit T-6 Slip-On Silencer for Kawasaki KLX230R 2020-2022 0122023A
PRO CIRCUIT
MSRP: $465.95Now: $410.04Was: $465.95Elevate your off-road experience with the Pro Circuit 0122023A T-6 Slip-On Muffler, specifically designed for the 2020 Kawasaki KLX230R. This high-performance muffler not only enhances the power and efficiency of your bike but also provides a robust...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: $465.95Now: $410.04Was: $465.95 -
On Sale
Pro Circuit T-6 Slip-On Silencer for Kawasaki KLX300R 2020-2022 0122030A
PRO CIRCUIT
MSRP: $465.95Now: $410.04Was: $465.95Elevate your off-road adventures with the Pro Circuit 0122030A T-6 Slip-On Muffler, meticulously engineered for the Kawasaki KLX300R (2020-2025). This high-performance upgrade not only enhances power and efficiency but also ensures durability in the...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: $465.95Now: $410.04Was: $465.95 -
On Sale
Pro Circuit T-6 Stainless Slip-On Exhaust Honda CRF450X 2019-2024 0111945GXA
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Pro Circuit T-6 Slip-On Exhaust - Part # 0111945GXA Elevate your riding experience with the Pro Circuit T-6 Slip-On Exhaust, designed specifically for the Honda CRF450X. This exhaust system combines cutting-edge engineering with robust materials to...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: $590.95Now: $520.04Was: $590.95 -
On Sale
Pro Circuit T-6 Slip-On Silencer KTM 250 SX-F 2019-2022 0151925A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Pro Circuit T-6 Stainless Slip-On Exhaust - Part # 0151925A Transform your off-road experience with the Pro Circuit T-6 Stainless Slip-On Exhaust, engineered for riders who prioritize performance and resilience. This exhaust system not only enhances your...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: $590.95Now: $520.04Was: $590.95 -
On Sale
Pro Circuit T-6 Slip-On Exhaust KTM 350 SX-F 2019-2022 0151935A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Elevate your off-road adventures with the Pro Circuit T-6 Stainless Slip-On Exhaust, engineered for riders who demand superior performance without compromising on quality. This exhaust system not only enhances power and efficiency but also boasts a...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: $590.95Now: $520.04Was: $590.95 -
On Sale
Pro Circuit T-6 Slip-On Exhaust Honda CRF450R 2019-2020 0111945A2
PRO CIRCUIT
MSRP: $950.95Now: $836.84Was: $950.95Pro Circuit T-6 Slip-On Exhaust - Part # 0111945A2 Elevate your riding experience with the Pro Circuit T-6 Slip-On Exhaust, specifically designed for the Honda CRF450R/RX. This exhaust system combines cutting-edge engineering with durable materials to...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: $950.95Now: $836.84Was: $950.95
