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 PowerCore 4 HEX Muffler 042310
FMF
$449.99If you're looking to unlock real power gains without sacrificing durability or adding excessive weight, the FMF PowerCore 4 HEX Muffler delivers measurable increases in horsepower and torque through...18211522- SKU:
- 18211522
- Availability:
- Ships Same Business Day
- Weight:
- 6.63 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
$449.99Qty in Cart: 0Quantity:Price:$449.99Subtotal: -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 042259
FMF
$749.99If you're serious about extracting maximum power from your machine while reducing unsprung weight, the FMF Factory 4.1 RCT muffler delivers measurable gains across the entire RPM band—without...18211222- SKU:
- 18211222
- Availability:
- Ships Same Business Day
- Weight:
- 7.89 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
$749.99 -
FMF PowerCore 4 HEX Muffler 044404
FMF
$449.99The FMF PowerCore 4 HEX Muffler delivers measurable gains in power and torque while maintaining the durability required for serious riding conditions. Its Hi-Flo internal core geometry maximizes...18211534- SKU:
- 18211534
- Availability:
- Ships Same Business Day
- Weight:
- 7.70 LBS
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
$449.99 -
FMF Q4 HEX Muffler 044398
FMF
$449.99The FMF Q4 HEX Muffler delivers measurable power gains across the entire RPM range while significantly reducing weight compared to stock setups—giving you real performance without the excessive noise...18211544- SKU:
- 18211544
- Availability:
- Ships Same Business Day
- Weight:
- 7.33 LBS
- MODEL:
- Q4 HEX
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- END CAP MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- WEIGHT IMPERIAL:
- 6 LB
$449.99Qty in Cart: 0Quantity:Price:$449.99Subtotal: -
FMF PowerCore 4 HEX Muffler 041514
FMF
$449.99If you're running a high-performance machine, your exhaust system is either working for you or against you. The FMF PowerCore 4 HEX Muffler delivers measurable gains in power and torque while...18211555- SKU:
- 18211555
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- MUFFLER COLOR/FINISH:
- RAW
- UNITS:
- EACH
$449.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 041517
FMF
$599.99If you're serious about extracting maximum power from your engine while reducing unsprung weight, the FMF Factory 4.1 RCT Muffler delivers measurable gains across the entire RPM range. The advanced...18211563- SKU:
- 18211563
- Availability:
- Ships Same Business Day
- Weight:
- 9.05 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- PIPE MATERIAL:
- STAINLESS STEEL
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
$599.99 -
FMF PowerCore 4 HEX Muffler 044396
FMF
$449.99If you're running a stock muffler, you're leaving power on the table. The FMF PowerCore 4 HEX delivers measurable increases in horsepower and torque while maintaining reliability through durable...18211571- SKU:
- 18211571
- Availability:
- Ships Same Business Day
- Weight:
- 6.22 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
$449.99 -
FMF PowerCore 4 HEX Muffler 044397
FMF
$449.99If you're running a high-performance engine, your stock muffler is costing you power and responsiveness. The FMF PowerCore 4 HEX delivers measurable gains in horsepower and torque by optimizing...18211572- SKU:
- 18211572
- Availability:
- Ships Same Business Day
- Weight:
- 6.90 LBS
- MUFFLER COLOR/FINISH:
- RAW
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- TYPE:
- SLIP-ON
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4 HEX
$449.99 -
FMF PowerCore 4 HEX Muffler 045553
FMF
$449.99The FMF PowerCore 4 HEX Muffler delivers measurable gains in horsepower and torque while maintaining the durability and reliability your engine demands. Built with premium stainless steel and...18211627- SKU:
- 18211627
- Availability:
- Ships Same Business Day
- Weight:
- 5.90 LBS
- MODEL:
- POWERCORE 4 HEX
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- END CAP 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 - Anodized Titanium 045561
FMF
$649.99If you're serious about extracting maximum power while keeping weight down, the FMF Factory 4.1 RCT Muffler delivers measurable gains across the entire RPM band without the fragility of longer...18211631- SKU:
- 18211631
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- MUFFLER MATERIAL:
- TITANIUM
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- PIPE MATERIAL:
- TITANIUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$649.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 045558
FMF
$549.99If 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 range without...18211633- SKU:
- 18211633
- Availability:
- Ships Same Business Day
- Weight:
- 6.12 LBS
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$549.99 -
FMF Powercore 4 Muffler 044448
FMF
$449.99The FMF Powercore 4 Muffler delivers measurable power gains across the entire RPM range without compromising rideability or durability. Whether you're pushing hard on the track or tackling varied...18211028- SKU:
- 18211028
- Availability:
- Ships Same Business Day
- Weight:
- 5.30 LBS
- PRODUCT NAME:
- MUFFLER
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
- STYLE:
- OVAL
- BASE COLOR:
- SILVER
- END CAP STYLE:
- CONICAL
- MUFFLER MATERIAL:
- ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$449.99 -
FMF Powercore 4 Muffler 043095
FMF
$269.99Stock exhaust systems rob your Mini of both power and character. The FMF Powercore 4 delivers measurable horsepower gains and a more aggressive acoustic signature through a bolt-on design that...18210521- SKU:
- 18210521
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- PIPE MATERIAL:
- STAINLESS STEEL
- END CAP MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- WEIGHT IMPERIAL:
- 2.6 LB
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
$269.99 -
FMF Powercore 4 Muffler 041284
FMF
$449.99If you're looking for measurable power gains without compromise, the FMF Powercore 4 Muffler delivers consistent horsepower and torque increases across the entire power curve—the kind of performance...18210540- SKU:
- 18210540
- Availability:
- Ships Same Business Day
- Weight:
- 5.90 LBS
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
$449.99 -
FMF Q4 Muffler 041287
FMF
$499.99If you're running off-road, you need a muffler that doesn't force you to choose between noise compliance and power delivery. The FMF Q4 combines championship-proven engineering with a lightweight...18210543- SKU:
- 18210543
- Availability:
- Ships Same Business Day
- Weight:
- 6.35 LBS
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- MODEL:
- Q4
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
$499.99 -
FMF Powercore 4 Muffler 044228
FMF
$449.99The FMF Powercore 4 Muffler delivers measurable gains across your entire power curve without sacrificing rideability or reliability. Built for riders who demand real-world performance...18210578- SKU:
- 18210578
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- BASE COLOR:
- SILVER
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- END CAP MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
$449.99 -
FMF Q4 Muffler 044232
FMF
$499.99If you're running off-road and need to meet sound regulations without sacrificing performance, the FMF Q4 Muffler delivers race-proven quiet power that doesn't compromise your engine's potential...18210581- SKU:
- 18210581
- Availability:
- Ships Same Business Day
- Weight:
- 7.60 LBS
- BASE COLOR:
- SILVER
- END CAP STYLE:
- CONICAL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- MODEL:
- Q4
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
$499.99 -
FMF Powercore 4 Muffler 041273
FMF
$449.99If you're looking to unlock measurable performance gains without compromising reliability, the FMF Powercore 4 Muffler delivers consistent horsepower and torque increases across your entire power...18210662- SKU:
- 18210662
- Availability:
- Ships Same Business Day
- Weight:
- 6.56 LBS
- BASE COLOR:
- SILVER
- MODEL:
- POWERCORE 4
- END CAP STYLE:
- CONICAL
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
$449.99 -
FMF Powercore 4 Muffler 041274
FMF
$399.99The FMF Powercore 4 Muffler delivers measurable gains across your entire power curve—horsepower and torque improvements that translate to real-world performance whether you're on the track or trail...18210663- SKU:
- 18210663
- Availability:
- Ships Same Business Day
- Weight:
- 6.38 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- END CAP STYLE:
- CONICAL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
- BASE COLOR:
- SILVER
- MODEL:
- POWERCORE 4
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal: -
FMF Powercore 4 Muffler 042123
FMF
$449.99The FMF Powercore 4 Muffler delivers measurable horsepower and torque gains across the entire power band, giving you usable performance whether you're trail riding, sport touring, or pushing hard on...18210672- SKU:
- 18210672
- Availability:
- Ships Same Business Day
- Weight:
- 6.19 LBS
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
- END CAP MATERIAL:
- STAINLESS STEEL
- END CAP STYLE:
- CONICAL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- MODEL:
- POWERCORE 4
$449.99Qty in Cart: 0Quantity:Price:$449.99Subtotal:
