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
-
FMF Q4 Muffler 044195
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,...18210676- SKU:
- 18210676
- Availability:
- Ships Same Business Day
- Weight:
- 7.44 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- BASE COLOR:
- SILVER
- END CAP STYLE:
- CONICAL
- 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
$449.99 -
FMF Powercore 4 Muffler 044220
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...18210680- SKU:
- 18210680
- Availability:
- Ships Same Business Day
- Weight:
- 6.44 LBS
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
- END CAP STYLE:
- CONICAL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- END CAP MATERIAL:
- STAINLESS STEEL
$399.99 -
FMF Powercore 4 Muffler 044222
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...18210681- SKU:
- 18210681
- Availability:
- Ships Same Business Day
- Weight:
- 6.56 LBS
- END CAP MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- POWERCORE 4
- MUFFLER MATERIAL:
- ALUMINUM
- STYLE:
- OVAL
- BASE COLOR:
- SILVER
- END CAP STYLE:
- CONICAL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$399.99 -
FMF Powercore 4 Muffler 042160
FMF
$269.99The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini, Features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header, Pounds lighter than stock18210807- SKU:
- 18210807
- Availability:
- Ships Same Business Day
- Weight:
- 5.25 LBS
- END CAP STYLE:
- CONICAL
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- SILVER
- WEIGHT IMPERIAL:
- 2.5 LB
- END CAP MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
$269.99 -
FMF Powercore 4 Muffler 042161
FMF
$289.99The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini, Features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header, Hi-Flo Core and End Cap, Pounds...18210808- SKU:
- 18210808
- Availability:
- Ships Same Business Day
- Weight:
- 5.20 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- SILVER
- MODEL:
- POWERCORE 4
- UNITS:
- EACH
- WEIGHT IMPERIAL:
- 2.9 LB
- END CAP STYLE:
- CONICAL
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- END CAP MATERIAL:
- STAINLESS STEEL
- STYLE:
- OVAL
- TYPE:
- SLIP-ON
$289.99 -
FMF Q4 HEX Muffler 041578
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...18211952- SKU:
- 18211952
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
- 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
- MODEL:
- Q4 HEX
$449.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 042374
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 -...18211953- SKU:
- 18211953
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 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
$599.99 -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 042376
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 -...18211955- SKU:
- 18211955
- Availability:
- Ships Same Business Day
- Weight:
- 6.70 LBS
- PIPE MATERIAL:
- TITANIUM
- UNITS:
- EACH
- 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
$749.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 043372
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 -...18211958- SKU:
- 18211958
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- RAW
- END CAP MATERIAL:
- CARBON FIBER
- UNITS:
- EACH
$599.99 -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 043373
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 -...18211959- SKU:
- 18211959
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- 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
$749.99 -
FMF Mini PowerCore 4 Slip-On Muffler - without Spark Arrestor - CRF110F '19+ 041579
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 stock18211962- SKU:
- 18211962
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MODEL:
- MINI POWERCORE 4
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- FEATURES:
- WITHOUT SPARK ARRESTOR
$209.99 -
FMF Mini PowerCore 4 Slip-On Muffler - with Spark Arrestor 041580
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 stock18211963- SKU:
- 18211963
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- FEATURES:
- WITH SPARK ARRESTOR
- MODEL:
- MINI POWERCORE 4
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
$239.99 -
FMF Q4 HEX Muffler 045646
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...18211999- SKU:
- 18211999
- Availability:
- Ships Same Business Day
- Weight:
- 6.30 LBS
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SLIP-ON
- WEIGHT IMPERIAL:
- 5.1 LB
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- MODEL:
- Q4 HEX
- MUFFLER COLOR/FINISH:
- RAW
$449.99 -
FMF Factory 4.1 RCT Muffler - Aluminum 045647
FMF
$549.99The 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 -...18212000- SKU:
- 18212000
- Availability:
- Ships Same Business Day
- Weight:
- 6.20 LBS
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- END CAP MATERIAL:
- CARBON FIBER
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- MUFFLER
- MUFFLER COLOR/FINISH:
- RAW
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
$549.99 -
FMF Powercore 4 HEX Muffler 045666
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...18212005- SKU:
- 18212005
- Availability:
- Ships Same Business Day
- Weight:
- 7.45 LBS
- MODEL:
- POWERCORE 4 HEX
- MUFFLER MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- END CAP MATERIAL:
- STAINLESS STEEL
- MUFFLER COLOR/FINISH:
- RAW
- TYPE:
- SLIP-ON
- PIPE MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- MUFFLER
- RIDING STYLE:
- OFF-ROAD
$399.99 -
FMF Q4 HEX Muffler 045667
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...18212006- SKU:
- 18212006
- Availability:
- Ships Same Business Day
- Weight:
- 7.72 LBS
- MODEL:
- Q4 HEX
- MUFFLER COLOR/FINISH:
- RAW
- RIDING STYLE:
- OFF-ROAD
- END CAP MATERIAL:
- STAINLESS STEEL
- TYPE:
- SLIP-ON
- PRODUCT NAME:
- MUFFLER
- UNITS:
- EACH
- MUFFLER MATERIAL:
- ALUMINUM
- PIPE MATERIAL:
- STAINLESS STEEL
$449.99 -
FMF Factory 4.1 RCT Muffler - Anodized Titanium 045668
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 -...18212007- SKU:
- 18212007
- Availability:
- Ships Same Business Day
- Weight:
- 7.41 LBS
- END CAP MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- MUFFLER
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- MODEL:
- FACTORY 4.1 RCT
- MUFFLER COLOR/FINISH:
- ANODIZED BLUE
- PIPE MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- MUFFLER MATERIAL:
- TITANIUM
$749.99 -
FMF Q4 Muffler 042388
FMF
$449.99Developed over years of championship off-road racing, Twin-stage core design for lower sound output and extended life of packing material, Comes standard with spark arrestor18212028- SKU:
- 18212028
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- TYPE:
- SLIP-ON
- UNITS:
- EACH
- MODEL:
- Q4 HEX
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- MUFFLER
$449.99 -
FMF Powercore 4 Exhaust 041016
FMF
$279.99Hi-Flo end cap boosts all-around performance, Computer designed and dyno-tested for every 4-stroke application, Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power, A stainless steel mid-pipe mates to the...FMF041016- SKU:
- FMF041016
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FULL SYSTEM
- UNITS:
- KIT
- FEATURES:
- STANDARD
- BASE COLOR:
- SILVER
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- STYLE:
- ELLIPTICAL
- END CAP STYLE:
- EURO
$279.99 -
FMF Powercore 4 Exhaust 041015
FMF
$299.99Hi-Flo end cap boosts all-around performance, Computer designed and dyno-tested for every 4-stroke application, Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power, A stainless steel mid-pipe mates to the...FMF041015- SKU:
- FMF041015
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- ELLIPTICAL
- END CAP STYLE:
- EURO
- BASE COLOR:
- SILVER
- DESIGN/CONFIGURATION:
- 1-INTO-1 SYSTEM
- MODEL:
- POWERCORE 4
- PRODUCT NAME:
- EXHAUST SYSTEM
- TYPE:
- FULL SYSTEM
- FEATURES:
- WITH SPARK ARRESTOR
- UNITS:
- KIT
$299.99
