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.
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On Sale
Pro Circuit T-6 Slip-On Exhaust Suzuki RM-Z250 2019-2025 0141925A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Elevate your riding experience with the Pro Circuit T-6 Stainless Steel Slip-On Silencer, designed specifically for the Suzuki RM-Z250. This high-performance upgrade not only enhances power and efficiency but also provides a sleek aesthetic that serious...18211961- SKU:
- 18211961
- Availability:
- Ships Same Business Day
- Weight:
- 10.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SILENCER
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- T-6
MSRP: $590.95Now: $520.04Was: $590.95 -
On Sale
Pro Circuit T-4 Slip-On Exhaust Honda CRF450R 2005 4H05450
PRO CIRCUIT
MSRP: $539.95Now: $475.16Was: $539.95Pro Circuit T-4 Slip-On Exhaust - Part # 4H05450 Elevate your off-road adventures with the Pro Circuit T-4 Slip-On Exhaust, meticulously crafted to enhance your bike’s performance while ensuring long-lasting reliability. This exhaust system is perfect...18210175- SKU:
- 18210175
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- FEATURES:
- WITH SPARK ARRESTOR
- MODEL:
- T-4
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- SILENCER
- STYLE:
- ROUND
- UNITS:
- EACH
- MUFFLER COLOR/FINISH:
- POLISHED
MSRP: $539.95Now: $475.16Was: $539.95Qty in Cart: 0Quantity:Price:MSRP: $539.95Now: $475.16Was: $539.95Subtotal: -
On Sale
Pro Circuit T-6 Slip-On Exhaust Kawasaki KX250F 2009-2016 0121425A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Transform your riding experience with the Pro Circuit T-6 Stainless Slip-On Silencer. This high-performance exhaust solution is engineered for riders seeking to enhance their bike's power and efficiency without compromising on quality. With its...18211604- SKU:
- 18211604
- Availability:
- Ships Same Business Day
- Weight:
- 9.35 LBS
- PRODUCT NAME:
- SILENCER
- MODEL:
- T-6
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- 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 Exhaust for Suzuki RM-Z450 2018-2025 0141845A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95The PRO CIRCUIT T-6 Muffler is the perfect upgrade for riders seeking enhanced performance without breaking the bank. This slip-on silencer combines durability and efficiency, making installation a breeze while ensuring a robust fit with your stock...18211845- SKU:
- 18211845
- Availability:
- Ships Same Business Day
- Weight:
- 10.00 LBS
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SILENCER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- T-6
MSRP: $590.95Now: $520.04Was: $590.95Qty in Cart: 0Quantity:Price:MSRP: $590.95Now: $520.04Was: $590.95Subtotal: -
FMF Q4 HEX Muffler 042296
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...18211394- SKU:
- 18211394
- Availability:
- Ships Same Business Day
- Weight:
- 7.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MODEL:
- Q4 HEX
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- WEIGHT IMPERIAL:
- 5.8 LB
- END CAP MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
$449.99Qty in Cart: 0Quantity:Price:$449.99Subtotal: -
FMF Factory 4.1 Muffler 041594
FMF
$299.99Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps, The lightest mufflers available, Superior power and performance - horsepower improved throughout the rpm range, Feature exclusive proprietary Chamber Core...18212020- SKU:
- 18212020
- Availability:
- Ships Same Business Day
- Weight:
- 3.16 LBS
- MUFFLER MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY 4.1
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- COLOR/FINISH:
- STAINLESS STEEL
- END CAP MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
$299.99Qty in Cart: 0Quantity:Price:$299.99Subtotal: -
FMF Factory 4.1 Muffler 042382
FMF
$299.99Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps, The lightest mufflers available, Superior power and performance - horsepower improved throughout the rpm range, Feature exclusive proprietary Chamber Core...18212022- SKU:
- 18212022
- Availability:
- Ships Same Business Day
- Weight:
- 3.71 LBS
- MUFFLER MATERIAL:
- ALUMINUM
- END CAP MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
- MODEL:
- FACTORY 4.1
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$299.99 -
FMF PowerCore 4 HEX Muffler 043362
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...18211855- SKU:
- 18211855
- Availability:
- Ships Same Business Day
- Weight:
- 6.70 LBS
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4 HEX
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal: -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 043365
FMF
$749.99The 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 -...18211858- SKU:
- 18211858
- Availability:
- Ships Same Business Day
- Weight:
- 6.50 LBS
- PRODUCT NAME:
- MUFFLER
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- CARBON FIBER
- MUFFLER MATERIAL:
- TITANIUM
- UNITS:
- EACH
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
$749.99Qty in Cart: 0Quantity:Price:$749.99Subtotal: -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 045596
FMF
$599.99The 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 -...18211721- SKU:
- 18211721
- Availability:
- Ships Same Business Day
- Weight:
- 7.05 LBS
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- END CAP MATERIAL:
- TITANIUM
- MUFFLER MATERIAL:
- TITANIUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$599.99Qty in Cart: 0Quantity:Price:$599.99Subtotal: -
FMF Factory 4.1 RCT Muffler - Aluminum 042330
FMF
$599.99The 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 -...18211726- SKU:
- 18211726
- Availability:
- Ships Same Business Day
- Weight:
- 7.70 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- UNITS:
- EACH
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$599.99Qty in Cart: 0Quantity:Price:$599.99Subtotal: -
FMF PowerCore 4 HEX Muffler 042309
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...18211521- SKU:
- 18211521
- Availability:
- Ships Same Business Day
- Weight:
- 6.57 LBS
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal: -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 042267
FMF
$749.99The 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 -...18211227- SKU:
- 18211227
- Availability:
- Ships Same Business Day
- Weight:
- 7.89 LBS
- PIPE MATERIAL:
- TITANIUM
- UNITS:
- EACH
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- MUFFLER MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- PRODUCT NAME:
- MUFFLER
$749.99Qty in Cart: 0Quantity:Price:$749.99Subtotal: -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 045570
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 -...18211644- SKU:
- 18211644
- Availability:
- Ships Same Business Day
- Weight:
- 6.70 LBS
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- TITANIUM
- END CAP MATERIAL:
- CARBON FIBER
- MUFFLER MATERIAL:
- TITANIUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$649.99Qty in Cart: 0Quantity:Price:$649.99Subtotal: -
FMF Powercore 4 Muffler 044312
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...18211027- SKU:
- 18211027
- Availability:
- Ships Same Business Day
- Weight:
- 5.15 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- STYLE:
- OVAL
- END CAP MATERIAL:
- STAINLESS STEEL
- END CAP STYLE:
- CONICAL
- MODEL:
- POWERCORE 4
- BASE COLOR:
- SILVER
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- TYPE:
- SLIP-ON
$359.99Qty in Cart: 0Quantity:Price:$359.99Subtotal: -
FMF Powercore 4 Muffler 044141
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...18210363- SKU:
- 18210363
- Availability:
- Ships Same Business Day
- Weight:
- 6.05 LBS
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
$359.99Qty in Cart: 0Quantity:Price:$359.99Subtotal: -
FMF Factory 4.1 Muffler - Anodized Titanium 041291
FMF
$499.99Superior power and performance - horsepower improved throughout the rpm range, Factory Forward Engineering centralizes mass, improves handling, Customize with performance tuning inserts and spark arrestor module18210547- SKU:
- 18210547
- Availability:
- Ships Same Business Day
- Weight:
- 5.69 LBS
- STYLE:
- OVAL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP STYLE:
- EURO
- MODEL:
- FACTORY 4.1
- MUFFLER MATERIAL:
- TITANIUM
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- TITANIUM
$499.99Qty in Cart: 0Quantity:Price:$499.99Subtotal: -
FMF Factory 4.1 Muffler - Anodized Titanium 044235
FMF
$499.99Superior power and performance - horsepower improved throughout the rpm range, Factory Forward Engineering centralizes mass, improves handling, Customize with performance tuning inserts and spark arrestor module18210584- SKU:
- 18210584
- Availability:
- Ships Same Business Day
- Weight:
- 6.25 LBS
- END CAP STYLE:
- EURO
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- MUFFLER MATERIAL:
- TITANIUM
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- FACTORY 4.1
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- STYLE:
- OVAL
$499.99Qty in Cart: 0Quantity:Price:$499.99Subtotal: -
FMF Q4 Muffler 041249
FMF
$449.99The Q series features advanced engineering to precisely locate baffles and chambers to absorb sound, Less mass to enhance power-to-weight ratio, Quiet power with minimal sacrifice for performance, Developed over years of championship off-road racing,...18210653- SKU:
- 18210653
- Availability:
- Ships Same Business Day
- Weight:
- 7.15 LBS
- END CAP STYLE:
- EURO
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- MODEL:
- Q4
- PRODUCT NAME:
- MUFFLER
$449.99Qty in Cart: 0Quantity:Price:$449.99Subtotal: -
FMF Powercore 4 Muffler 041275
FMF
$399.99Developed 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...18210664- SKU:
- 18210664
- Availability:
- Ships Same Business Day
- Weight:
- 6.31 LBS
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal:
