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FMF Dirt Bike 4 Stroke Mufflers

FMF Dirt Bike 4 Stroke Mufflers

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • FMF Powercore 4 Muffler 043095

    FMF Powercore 4 Muffler 043095

    FMF

    $269.99
    The 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 stock
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $269.99
    Subtotal:
  • FMF Powercore 4 Muffler 041284

    FMF Powercore 4 Muffler 041284

    FMF

    $399.99
    Developed 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...
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Q4 Muffler 041287 FMF Q4 Muffler 041287

    FMF Q4 Muffler 041287

    FMF

    $449.99
    The 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,...
    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
    $449.99
    Qty in Cart: 0
    Quantity:
    Price:
    $449.99
    Subtotal:
  • FMF Powercore 4 Muffler 044228

    FMF Powercore 4 Muffler 044228

    FMF

    $399.99
    Developed 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...
    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
    $399.99
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Q4 Muffler 044232 FMF Q4 Muffler 044232

    FMF Q4 Muffler 044232

    FMF

    $449.99
    The 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,...
    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
    $449.99
    Qty in Cart: 0
    Quantity:
    Price:
    $449.99
    Subtotal:
  • FMF Powercore 4 Muffler 041273

    FMF Powercore 4 Muffler 041273

    FMF

    $399.99
    Developed 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...
    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
    $399.99
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Powercore 4 Muffler 041274

    FMF Powercore 4 Muffler 041274

    FMF

    $399.99
    Developed 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...
    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
    $399.99
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Powercore 4 Muffler 042123

    FMF Powercore 4 Muffler 042123

    FMF

    $399.99
    Developed 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...
    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
    $399.99
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Q4 Muffler 044195 FMF Q4 Muffler 044195

    FMF Q4 Muffler 044195

    FMF

    $449.99
    The 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
    Qty in Cart: 0
    Quantity:
    Price:
    $449.99
    Subtotal:
  • FMF Powercore 4 Muffler 044220

    FMF Powercore 4 Muffler 044220

    FMF

    $399.99
    Developed 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
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Powercore 4 Muffler 044222

    FMF Powercore 4 Muffler 044222

    FMF

    $399.99
    Developed 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
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Powercore 4 Muffler 042160

    FMF Powercore 4 Muffler 042160

    FMF

    $269.99
    The 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 stock
    18210807
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $269.99
    Subtotal:
  • FMF Powercore 4 Muffler 042161

    FMF Powercore 4 Muffler 042161

    FMF

    $289.99
    The 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
    Qty in Cart: 0
    Quantity:
    Price:
    $289.99
    Subtotal:
  • FMF Q4 HEX Muffler 041578

    FMF Q4 HEX Muffler 041578

    FMF

    $449.99
    The 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
    Qty in Cart: 0
    Quantity:
    Price:
    $449.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Aluminum 042374

    FMF Factory 4.1 RCT Muffler - Aluminum 042374

    FMF

    $599.99
    The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technologyâ„¢ 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
    Qty in Cart: 0
    Quantity:
    Price:
    $599.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Anodized Titanium 042376

    FMF Factory 4.1 RCT Muffler - Anodized Titanium 042376

    FMF

    $749.99
    The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technologyâ„¢ 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
    Qty in Cart: 0
    Quantity:
    Price:
    $749.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Aluminum 043372

    FMF Factory 4.1 RCT Muffler - Aluminum 043372

    FMF

    $599.99
    The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technologyâ„¢ 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
    Qty in Cart: 0
    Quantity:
    Price:
    $599.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Anodized Titanium 043373

    FMF Factory 4.1 RCT Muffler - Anodized Titanium 043373

    FMF

    $749.99
    The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technologyâ„¢ 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
    Qty in Cart: 0
    Quantity:
    Price:
    $749.99
    Subtotal:
  • FMF Mini PowerCore 4 Slip-On Muffler - without Spark Arrestor - CRF110F '19+ 041579

    FMF Mini PowerCore 4 Slip-On Muffler - without Spark Arrestor - CRF110F '19+ 041579

    FMF

    $209.99
    Features 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 stock
    18211962
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $209.99
    Subtotal:
  • FMF Mini PowerCore 4 Slip-On Muffler - with Spark Arrestor 041580

    FMF Mini PowerCore 4 Slip-On Muffler - with Spark Arrestor 041580

    FMF

    $239.99
    Features 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 stock
    18211963
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $239.99
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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