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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 043379

    FMF Powercore 4 Muffler 043379

    FMF

    $399.99
    FMF Powercore 4 Muffler
    18212040
    SKU:
    18212040
    Availability:
    Ships Same Business Day
    Weight:
    7.30 LBS
    END CAP MATERIAL:
    STAINLESS STEEL
    MODEL:
    POWERCORE 4
    TYPE:
    SLIP-ON
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MUFFLER MATERIAL:
    ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    $399.99
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Q4 Muffler 041597

    FMF Q4 Muffler 041597

    FMF

    $449.99
    Developed 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 arrestor
    18212029
    SKU:
    18212029
    Availability:
    Ships Same Business Day
    Weight:
    6.20 LBS
    PRODUCT NAME:
    MUFFLER
    MODEL:
    Q4
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    $449.99
    Qty in Cart: 0
    Quantity:
    Price:
    $449.99
    Subtotal:
  • FMF PowerCore 4 HEX Muffler 041586

    FMF PowerCore 4 HEX Muffler 041586

    FMF

    $399.99
    Overall 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...
    18113799
    SKU:
    18113799
    Availability:
    Ships Same Business Day
    Weight:
    3.10 LBS
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    MUFFLER COLOR/FINISH:
    RAW
    MUFFLER MATERIAL:
    ALUMINUM
    END CAP MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    MUFFLER
    MODEL:
    POWERCORE 4 HEX
    TYPE:
    SLIP-ON
    UNITS:
    EACH
    $399.99
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Aluminum 043364

    FMF Factory 4.1 RCT Muffler - Aluminum 043364

    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 -...
    18211857
    SKU:
    18211857
    Availability:
    Ships Same Business Day
    Weight:
    7.20 LBS
    MUFFLER COLOR/FINISH:
    RAW
    MUFFLER MATERIAL:
    ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MODEL:
    FACTORY 4.1 RCT
    END CAP MATERIAL:
    CARBON FIBER
    UNITS:
    EACH
    $599.99
    Qty in Cart: 0
    Quantity:
    Price:
    $599.99
    Subtotal:
  • FMF PowerCore 4 HEX Muffler 044451

    FMF PowerCore 4 HEX Muffler 044451

    FMF

    $399.99
    Overall 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...
    18211881
    SKU:
    18211881
    Availability:
    Ships Same Business Day
    Weight:
    7.20 LBS
    UNITS:
    EACH
    MUFFLER COLOR/FINISH:
    RAW
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    END CAP MATERIAL:
    STAINLESS STEEL
    MODEL:
    POWERCORE 4 HEX
    MUFFLER MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    MUFFLER
    $399.99
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Q4 HEX Muffler 044452

    FMF Q4 HEX Muffler 044452

    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...
    18211882
    SKU:
    18211882
    Availability:
    Ships Same Business Day
    Weight:
    7.20 LBS
    END CAP MATERIAL:
    STAINLESS STEEL
    UNITS:
    EACH
    MODEL:
    Q4 HEX
    MUFFLER MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    MUFFLER
    MUFFLER COLOR/FINISH:
    RAW
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    $449.99
    Qty in Cart: 0
    Quantity:
    Price:
    $449.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Anodized Titanium 044455

    FMF Factory 4.1 RCT Muffler - Anodized Titanium 044455

    FMF

    $849.99
    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 -...
    18211885
    SKU:
    18211885
    Availability:
    Ships Same Business Day
    Weight:
    7.90 LBS
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MUFFLER MATERIAL:
    TITANIUM
    END CAP MATERIAL:
    CARBON FIBER
    UNITS:
    EACH
    MODEL:
    FACTORY 4.1 RCT
    MUFFLER COLOR/FINISH:
    ANODIZED BLUE
    PIPE MATERIAL:
    TITANIUM
    $849.99
    Qty in Cart: 0
    Quantity:
    Price:
    $849.99
    Subtotal:
  • FMF PowerCore 4 HEX Muffler 042367

    FMF PowerCore 4 HEX Muffler 042367

    FMF

    $399.99
    Overall 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...
    18211886
    SKU:
    18211886
    Availability:
    Ships Same Business Day
    Weight:
    7.00 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:
    STAINLESS STEEL
    MODEL:
    POWERCORE 4 HEX
    UNITS:
    EACH
    $399.99
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Q4 HEX Muffler 042368

    FMF Q4 HEX Muffler 042368

    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...
    18211887
    SKU:
    18211887
    Availability:
    Ships Same Business Day
    Weight:
    7.20 LBS
    PIPE MATERIAL:
    STAINLESS STEEL
    END CAP MATERIAL:
    STAINLESS STEEL
    MUFFLER MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    MUFFLER
    UNITS:
    EACH
    MODEL:
    Q4 HEX
    MUFFLER COLOR/FINISH:
    RAW
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    $449.99
    Qty in Cart: 0
    Quantity:
    Price:
    $449.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Aluminum 042369

    FMF Factory 4.1 RCT Muffler - Aluminum 042369

    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 -...
    18211888
    SKU:
    18211888
    Availability:
    Ships Same Business Day
    Weight:
    7.64 LBS
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MUFFLER MATERIAL:
    ALUMINUM
    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 042371

    FMF Factory 4.1 RCT Muffler - Anodized Titanium 042371

    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 -...
    18211890
    SKU:
    18211890
    Availability:
    Ships Same Business Day
    Weight:
    7.13 LBS
    PIPE MATERIAL:
    TITANIUM
    UNITS:
    EACH
    END CAP MATERIAL:
    CARBON FIBER
    MODEL:
    FACTORY 4.1 RCT
    MUFFLER COLOR/FINISH:
    ANODIZED BLUE
    MUFFLER MATERIAL:
    TITANIUM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    PRODUCT NAME:
    MUFFLER
    $749.99
    Qty in Cart: 0
    Quantity:
    Price:
    $749.99
    Subtotal:
  • FMF PowerCore 4 HEX Muffler 045626

    FMF PowerCore 4 HEX Muffler 045626

    FMF

    $549.99
    Overall 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...
    18211918
    SKU:
    18211918
    Availability:
    Ships Same Business Day
    Weight:
    7.20 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 COLOR/FINISH:
    RAW
    MUFFLER MATERIAL:
    ALUMINUM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    EACH
    $549.99
    Qty in Cart: 0
    Quantity:
    Price:
    $549.99
    Subtotal:
  • FMF Q4 HEX Muffler 045627

    FMF Q4 HEX Muffler 045627

    FMF

    $569.99
    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...
    18211919
    SKU:
    18211919
    Availability:
    Ships Same Business Day
    Weight:
    7.30 LBS
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    END CAP MATERIAL:
    STAINLESS STEEL
    MUFFLER COLOR/FINISH:
    RAW
    MUFFLER MATERIAL:
    ALUMINUM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    EACH
    MODEL:
    Q4 HEX
    $569.99
    Qty in Cart: 0
    Quantity:
    Price:
    $569.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Aluminum 045628

    FMF Factory 4.1 RCT Muffler - Aluminum 045628

    FMF

    $674.99
    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 -...
    18211920
    SKU:
    18211920
    Availability:
    Ships Same Business Day
    Weight:
    3.40 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    END CAP MATERIAL:
    CARBON FIBER
    MODEL:
    FACTORY 4.1 RCT
    MUFFLER COLOR/FINISH:
    RAW
    MUFFLER MATERIAL:
    ALUMINUM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    PIPE MATERIAL:
    STAINLESS STEEL
    TYPE:
    SLIP-ON
    PRODUCT NAME:
    MUFFLER
    $674.99
    Qty in Cart: 0
    Quantity:
    Price:
    $674.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Anodized Titanium 045629

    FMF Factory 4.1 RCT Muffler - Anodized Titanium 045629

    FMF

    $854.99
    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 -...
    18211921
    SKU:
    18211921
    Availability:
    Ships Same Business Day
    Weight:
    7.10 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:
    ANODIZED BLUE
    MUFFLER MATERIAL:
    TITANIUM
    PIPE MATERIAL:
    TITANIUM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    $854.99
    Qty in Cart: 0
    Quantity:
    Price:
    $854.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Anodized Titanium 045633

    FMF Factory 4.1 RCT Muffler - Anodized Titanium 045633

    FMF

    $854.99
    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 -...
    18211925
    SKU:
    18211925
    Availability:
    Ships Same Business Day
    Weight:
    6.60 LBS
    MODEL:
    FACTORY 4.1 RCT
    MUFFLER COLOR/FINISH:
    ANODIZED BLUE
    PIPE MATERIAL:
    TITANIUM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    END CAP MATERIAL:
    CARBON FIBER
    MUFFLER MATERIAL:
    TITANIUM
    PRODUCT NAME:
    MUFFLER
    UNITS:
    EACH
    $854.99
    Qty in Cart: 0
    Quantity:
    Price:
    $854.99
    Subtotal:
  • FMF PowerCore 4 HEX Muffler 042345

    FMF PowerCore 4 HEX Muffler 042345

    FMF

    $399.99
    Overall 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...
    18211794
    SKU:
    18211794
    Availability:
    Ships Same Business Day
    Weight:
    6.90 LBS
    MODEL:
    POWERCORE 4 HEX
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    MUFFLER
    TYPE:
    SLIP-ON
    END CAP MATERIAL:
    STAINLESS STEEL
    MUFFLER COLOR/FINISH:
    RAW
    RIDING STYLE:
    OFF-ROAD
    MUFFLER MATERIAL:
    ALUMINUM
    UNITS:
    EACH
    $399.99
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF PowerCore 4 HEX Muffler 044441

    FMF PowerCore 4 HEX Muffler 044441

    FMF

    $399.99
    Overall 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...
    18211836
    SKU:
    18211836
    Availability:
    Ships Same Business Day
    Weight:
    6.65 LBS
    UNITS:
    EACH
    MUFFLER COLOR/FINISH:
    RAW
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    END CAP MATERIAL:
    STAINLESS STEEL
    MODEL:
    POWERCORE 4 HEX
    MUFFLER MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    MUFFLER
    $399.99
    Qty in Cart: 0
    Quantity:
    Price:
    $399.99
    Subtotal:
  • FMF Q4 HEX Muffler 044442

    FMF Q4 HEX Muffler 044442

    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...
    18211837
    SKU:
    18211837
    Availability:
    Ships Same Business Day
    Weight:
    7.20 LBS
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    MUFFLER
    TYPE:
    SLIP-ON
    END CAP MATERIAL:
    STAINLESS STEEL
    MODEL:
    Q4 HEX
    MUFFLER COLOR/FINISH:
    RAW
    RIDING STYLE:
    OFF-ROAD
    MUFFLER MATERIAL:
    ALUMINUM
    UNITS:
    EACH
    $449.99
    Qty in Cart: 0
    Quantity:
    Price:
    $449.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Aluminum 044443

    FMF Factory 4.1 RCT Muffler - Aluminum 044443

    FMF

    $649.99
    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 -...
    18211838
    SKU:
    18211838
    Availability:
    Ships Same Business Day
    Weight:
    9.15 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
    $649.99
    Qty in Cart: 0
    Quantity:
    Price:
    $649.99
    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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