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-4 Slip-On Silencer 2003 KTM 525 SX 4T00400
PRO CIRCUIT
MSRP: $475.95Now: $418.84Was: $475.95Transform your ride with the PRO CIRCUIT T-4 Silencer, expertly engineered to enhance performance and deliver exceptional horsepower gains. This silencer is compatible with both OEM and Pro Circuit head pipes, ensuring a perfect fit while maximizing your...4T00400- SKU:
- 4T00400
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- PRODUCT NAME:
- SILENCER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- ROUND
- FEATURES:
- WITH SPARK ARRESTOR
- MODEL:
- T-4
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER COLOR/FINISH:
- POLISHED
MSRP: $475.95Now: $418.84Was: $475.95 -
On Sale
Pro Circuit T-4 Silencer Honda XR400R 1996-2004 4H00400
PRO CIRCUIT
MSRP: $475.95Now: $418.84Was: $475.95Unlock the full potential of your XR400R with the PRO CIRCUIT T-4 Silencer, engineered to deliver unparalleled performance and power. This high-quality silencer is crafted from durable aluminum and stainless steel, ensuring a lightweight yet robust...4H00400- SKU:
- 4H00400
- Availability:
- Ships Same Business Day
- Weight:
- 5.13 LBS
MSRP: $475.95Now: $418.84Was: $475.95 -
On Sale
Pro Circuit T-4 Slip-On Exhaust Honda XR650L 1993-2024 4H85600
PRO CIRCUIT
MSRP: $475.95Now: $418.84Was: $475.95Elevate your ride with the PRO CIRCUIT T-4 Silencer, engineered for optimal performance and designed to seamlessly integrate with both OEM and Pro Circuit head pipes. Experience remarkable horsepower and torque improvements across the power curve, making...4H85600- SKU:
- 4H85600
- Availability:
- Ships Same Business Day
- Weight:
- 9.00 LBS
MSRP: $475.95Now: $418.84Was: $475.95 -
On Sale
Pro Circuit T-6 Slip-On Silencer for Kawasaki KX250F 2017-2019 0121725A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Enhance your riding experience with the PRO CIRCUIT T-6 Muffler, expertly engineered for the KX250F models from 2017 to 2019. This slip-on silencer offers a perfect blend of performance and convenience, allowing for easy installation on your stock...18211783- SKU:
- 18211783
- Availability:
- Ships Same Business Day
- Weight:
- 10.30 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 Silencer KTM 350 SX-F 2016-2018 0151635A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95The PRO CIRCUIT T-6 Muffler is the perfect upgrade for riders seeking a high-performance silencer that combines durability with easy installation. Engineered to fit seamlessly onto stock headpipes, this muffler enhances your bike's performance while...18211729- SKU:
- 18211729
- Availability:
- Ships Same Business Day
- Weight:
- 8.60 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 Muffler for 2018 KTM 450SXF 0151545A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Upgrade your ride with the PRO CIRCUIT T-6 Muffler, designed for riders seeking a reliable and high-performance silencer. This slip-on solution is easy to install and enhances your bike's sound and performance without breaking the bank. Crafted with a...18211699- SKU:
- 18211699
- Availability:
- Ships Same Business Day
- Weight:
- 9.00 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 Silencer for Yamaha YZ450F 2018-2019 0131845A
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 significantly improving exhaust flow...18211841- SKU:
- 18211841
- Availability:
- Ships Same Business Day
- Weight:
- 12.30 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 Silencer Yamaha YZ250F 2019-2025 0131925A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95The PRO CIRCUIT T-6 Muffler is the ideal choice for riders seeking a high-performance silencer that combines affordability with durability. Designed for easy installation, this slip-on silencer enhances your bike's performance while maintaining a sleek...18211893- SKU:
- 18211893
- Availability:
- Ships Same Business Day
- Weight:
- 11.60 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SILENCER
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- T-6
- UNITS:
- EACH
MSRP: $590.95Now: $520.04Was: $590.95 -
On Sale
Pro Circuit T-6 Slip-On Silencer KTM 450 SX-F 2019-2022 0151845A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Elevate your riding experience with the PRO CIRCUIT T-6 Muffler, designed for enthusiasts who value performance and durability. This slip-on silencer combines easy installation with high-quality materials, ensuring a significant boost in power and sound...18211878- SKU:
- 18211878
- Availability:
- Ships Same Business Day
- Weight:
- 9.20 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- PRODUCT NAME:
- SILENCER
- UNITS:
- EACH
- MODEL:
- T-6
MSRP: $590.95Now: $520.04Was: $590.95 -
On Sale
Pro Circuit T-6 Slip-On Exhaust Honda CRF250R 2018-2019 0111825A2
PRO CIRCUIT
MSRP: $950.95Now: $836.84Was: $950.95Enhance your ride with the PRO CIRCUIT T-6 Stainless Slip-On Silencers, designed for those seeking a cost-effective and easy-to-install performance upgrade. Crafted for durability and efficiency, these silencers seamlessly attach to your stock headpipe,...18211860- SKU:
- 18211860
- Availability:
- Ships Same Business Day
- Weight:
- 17.40 LBS
- PRODUCT NAME:
- SILENCER
- MODEL:
- T-6
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
MSRP: $950.95Now: $836.84Was: $950.95 -
On Sale
Pro Circuit T-6 Slip-On Exhaust Kawasaki KX450F 2019-2022 0121945A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Transform your riding experience with the Pro Circuit Stainless T-6 Slip-On Silencer, designed for those who demand both power and versatility. This premium upgrade not only enhances your bike's performance but also ensures durability in various riding...18211891- SKU:
- 18211891
- Availability:
- Ships Same Business Day
- Weight:
- 10.20 LBS
- MODEL:
- T-6
- UNITS:
- EACH
- PRODUCT NAME:
- SILENCER
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
MSRP: $590.95Now: $520.04Was: $590.95 -
On Sale
Pro Circuit T-6 Slip-On Silencer Kawasaki KX250F 2021-2024 0122125A
PRO CIRCUIT
MSRP: $590.95Now: $520.04Was: $590.95Pro Circuit T6 Exhaust System with Carbon End Caps - Part #0122125A Elevate your riding experience with the Pro Circuit T6 Exhaust System featuring Carbon End Caps. Designed for enthusiasts who demand superior performance, this exhaust system offers a...18212030- SKU:
- 18212030
- Availability:
- Ships Same Business Day
- Weight:
- 9.90 LBS
- TYPE:
- SLIP-ON
- COLOR/FINISH:
- STAINLESS STEEL
- MODEL:
- T-6
- UNITS:
- EACH
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
MSRP: $590.95Now: $520.04Was: $590.95 -
FMF Factory 4.1 RCT Muffler - Aluminum 042290
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 -...18211391- SKU:
- 18211391
- Availability:
- Ships Same Business Day
- Weight:
- 8.83 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- END CAP MATERIAL:
- CARBON FIBER
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$599.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 042291
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 -...18211392- SKU:
- 18211392
- Availability:
- Ships Same Business Day
- Weight:
- 8.72 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- END CAP MATERIAL:
- CARBON FIBER
- UNITS:
- EACH
$599.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 042292
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 -...18211393- SKU:
- 18211393
- Availability:
- Ships Same Business Day
- Weight:
- 8.74 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- END CAP MATERIAL:
- CARBON FIBER
- UNITS:
- EACH
- MODEL:
- FACTORY 4.1 RCT
$599.99 -
FMF Q4 Muffler 043380
FMF
$449.99FMF Q4 Muffler18212045- SKU:
- 18212045
- Availability:
- Ships Same Business Day
- Weight:
- 7.15 LBS
- END CAP STYLE:
- SLASH-CUT
- PRODUCT NAME:
- MUFFLER
- MATERIAL:
- ALUMINUM
- MODEL:
- Q4 HEX
- RIDING STYLE:
- OFF-ROAD
- END CAP MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
- UNITS:
- EACH
$449.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 044464
FMF
$674.99The 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 -...18212012- SKU:
- 18212012
- Availability:
- Ships Same Business Day
- Weight:
- 8.40 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- PRODUCT NAME:
- MUFFLER
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
$674.99 -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 044466
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 -...18212013- SKU:
- 18212013
- Availability:
- Ships Same Business Day
- Weight:
- 8.40 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- TITANIUM
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- MUFFLER MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- MUFFLER
$799.99 -
FMF Factory 4.1 Muffler 042394
FMF
$599.99FMF Factory 4.1 Muffler18212035- SKU:
- 18212035
- Availability:
- Ships Same Business Day
- Weight:
- 7.68 LBS
- PRODUCT NAME:
- MUFFLER
- END CAP STYLE:
- CONICAL
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- MODEL:
- FACTORY 4.1 RCT
- RIDING STYLE:
- OFF-ROAD
- END CAP COLOR/FINISH:
- BLACK
- END CAP MATERIAL:
- CARBON FIBER
- MATERIAL:
- ALUMINUM
$599.99 -
FMF Factory 4.1 Muffler 042396
FMF
$749.99FMF Factory 4.1 Muffler18212036- SKU:
- 18212036
- Availability:
- Ships Same Business Day
- Weight:
- 6.70 LBS
- COLOR/FINISH:
- ANODIZED
- MODEL:
- FACTORY 4.1 RCT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- CARBON FIBER
- END CAP STYLE:
- CONICAL
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- END CAP COLOR/FINISH:
- SILVER
- MATERIAL:
- TITANIUM
$749.99
