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 Muffler 042122
FMF
$399.99The FMF Powercore 4 Muffler delivers measurable horsepower and torque gains across the entire power band without sacrificing durability or rideability. Whether you're pushing hard on the track or exploring varying terrain, this exhaust system produces...18210671- SKU:
- 18210671
- Availability:
- Ships Same Business Day
- Weight:
- 6.55 LBS
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
- PRODUCT NAME:
- MUFFLER
- TYPE:
- SLIP-ON
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
$399.99 -
FMF Powercore 4 Muffler 045135
FMF
$399.99The FMF Powercore 4 Muffler (045135) delivers measurable horsepower and torque gains across your entire power curve—not just at peak RPM—making usable power accessible whether you're cruising, carving canyons, or pushing hard at the track. Its aluminum...18210689- SKU:
- 18210689
- Availability:
- Ships Same Business Day
- Weight:
- 5.87 LBS
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP STYLE:
- CONICAL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal: -
FMF Q4 Muffler 041332
FMF
$379.99If you're running off-road and need to meet sound regulations without sacrificing performance, the FMF Q4 Muffler delivers championship-proven quiet power. Developed through years of competitive racing, this muffler uses precision baffle engineering to...18210887- SKU:
- 18210887
- Availability:
- Ships Same Business Day
- Weight:
- 5.30 LBS
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- END CAP STYLE:
- CONICAL
- MODEL:
- Q4
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- MUFFLER COLOR/FINISH:
- RAW
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
$379.99Qty in Cart: 0Quantity:Price:$379.99Subtotal: -
FMF PowerCore 4 HEX Muffler 043370
FMF
$399.99If you're looking to unlock measurable power and torque gains while maintaining reliability on the track or trail, the FMF PowerCore 4 HEX delivers the flow efficiency and durability you need. This muffler combines high-performance engineering with...18211956- SKU:
- 18211956
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- MODEL:
- POWERCORE 4 HEX
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal: -
FMF Powercore 4 Muffler 041048
FMF
$359.99If you're looking to unlock measurable performance gains without compromising durability, the FMF Powercore 4 Muffler delivers across the entire power curve—meaning usable power whether you're cruising or pushing hard. The engineered aluminum and...FMF041048- SKU:
- FMF041048
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
- END CAP STYLE:
- CONICAL
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$359.99 -
FMF Powercore 4 Muffler 041036
FMF
$399.99If you're looking to unlock measurable power gains without compromising reliability or rideability, the FMF Powercore 4 Muffler delivers across the entire power curve. This exhaust upgrade provides usable torque and horsepower increases that translate to...FMF041036- SKU:
- FMF041036
- Availability:
- Ships Same Business Day
- Weight:
- 6.45 LBS
- END CAP STYLE:
- CONICAL
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- STYLE:
- MODULAR
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal: -
FMF Powercore 4 Muffler 041023
FMF
$399.99If you're looking for measurable power gains without compromising durability or rideability, the FMF Powercore 4 delivers across the entire power band. This muffler increases both horsepower and torque in a way that's actually usable—whether you're...FMF041023- SKU:
- FMF041023
- Availability:
- Ships Same Business Day
- Weight:
- 6.16 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
- END CAP STYLE:
- CONICAL
- STYLE:
- MODULAR
- UNITS:
- EACH
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal: -
FMF Powercore 4 Muffler 041021
FMF
$399.99If you're looking to unlock measurable power gains across the entire RPM band, the FMF Powercore 4 Muffler delivers real horsepower and torque increases without sacrificing rideability or durability. The optimized internal chamber design works across all...FMF041021- SKU:
- FMF041021
- Availability:
- Ships Same Business Day
- Weight:
- 6.46 LBS
- BASE COLOR:
- SILVER
- END CAP STYLE:
- CONICAL
- STYLE:
- MODULAR
- UNITS:
- EACH
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal: -
FMF Factory 4.1 RCT Muffler - Aluminum 044427
FMF
$674.99The Factory 4.1 RCT transforms your exhaust system into a precision performance component, not just a silencer. By centralizing mass through Factory Forward Engineering and reducing overall length, you'll experience measurable power gains across the...18211610- SKU:
- 18211610
- Availability:
- Ships Same Business Day
- Weight:
- 8.10 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
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MODEL:
- FACTORY 4.1 RCT
$674.99Qty in Cart: 0Quantity:Price:$674.99Subtotal: -
Pro Circuit T-5 Slip-On Exhaust for Kawasaki KLR650 2008-2015 0121365A
PRO CIRCUIT
$590.95The Pro Circuit T-5 Slip-On Muffler delivers measurable gains in horsepower and throttle response while shedding unnecessary weight—critical for KLR650 riders who demand performance without compromise. Built from premium stainless steel and lightweight...18211532- SKU:
- 18211532
- Availability:
- Ships Same Business Day
- Weight:
- 13.05 LBS
- FEATURES:
- WITH SPARK ARRESTOR
- PIPE MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SILENCER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MODEL:
- T-5
$590.95Qty in Cart: 0Quantity:Price:$590.95Subtotal:
