Select Your Ride

1
2
3

FMF Factory 4.1 Mufflers

FMF Factory 4.1 Mufflers

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • FMF Factory 4.1 RCT Muffler - Aluminum 042290

    FMF Factory 4.1 RCT Muffler - Aluminum 042290

    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 -...
    18211391
    SKU:
    18211391
    Availability:
    Ships Same Business Day
    Weight:
    8.83 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
    $599.99
    Qty in Cart: 0
    Quantity:
    Price:
    $599.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Aluminum 042291

    FMF Factory 4.1 RCT Muffler - Aluminum 042291

    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 -...
    18211392
    SKU:
    18211392
    Availability:
    Ships Same Business Day
    Weight:
    8.72 LBS
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MODEL:
    FACTORY 4.1 RCT
    MUFFLER COLOR/FINISH:
    RAW
    MUFFLER MATERIAL:
    ALUMINUM
    END CAP MATERIAL:
    CARBON FIBER
    UNITS:
    EACH
    $599.99
    Qty in Cart: 0
    Quantity:
    Price:
    $599.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Aluminum 042292

    FMF Factory 4.1 RCT Muffler - Aluminum 042292

    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 -...
    18211393
    SKU:
    18211393
    Availability:
    Ships Same Business Day
    Weight:
    8.74 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
    UNITS:
    EACH
    MODEL:
    FACTORY 4.1 RCT
    $599.99
    Qty in Cart: 0
    Quantity:
    Price:
    $599.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Aluminum 044464

    FMF Factory 4.1 RCT Muffler - Aluminum 044464

    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 -...
    18212012
    SKU:
    18212012
    Availability:
    Ships Same Business Day
    Weight:
    8.40 LBS
    END CAP MATERIAL:
    CARBON FIBER
    MODEL:
    FACTORY 4.1 RCT
    MUFFLER COLOR/FINISH:
    RAW
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    UNITS:
    EACH
    PRODUCT NAME:
    MUFFLER
    MUFFLER MATERIAL:
    ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    $674.99
    Qty in Cart: 0
    Quantity:
    Price:
    $674.99
    Subtotal:
  • FMF Factory 4.1 RCT Muffler - Anodized Titanium 044466

    FMF Factory 4.1 RCT Muffler - Anodized Titanium 044466

    FMF

    $799.99
    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 -...
    18212013
    SKU:
    18212013
    Availability:
    Ships Same Business Day
    Weight:
    8.40 LBS
    END CAP MATERIAL:
    CARBON FIBER
    MODEL:
    FACTORY 4.1 RCT
    MUFFLER COLOR/FINISH:
    ANODIZED BLUE
    PIPE MATERIAL:
    TITANIUM
    TYPE:
    SLIP-ON
    UNITS:
    EACH
    MUFFLER MATERIAL:
    TITANIUM
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    MUFFLER
    $799.99
    Qty in Cart: 0
    Quantity:
    Price:
    $799.99
    Subtotal:
  • FMF Factory 4.1 Muffler 042394

    FMF Factory 4.1 Muffler 042394

    FMF

    $599.99
    FMF Factory 4.1 Muffler
    18212035
    SKU:
    18212035
    Availability:
    Ships Same Business Day
    Weight:
    7.20 LBS
    PRODUCT NAME:
    MUFFLER
    END CAP STYLE:
    CONICAL
    TYPE:
    SLIP-ON
    UNITS:
    EACH
    COLOR/FINISH:
    SILVER
    MODEL:
    FACTORY 4.1 RCT
    RIDING STYLE:
    OFF-ROAD
    END CAP COLOR/FINISH:
    BLACK
    END CAP MATERIAL:
    CARBON FIBER
    MATERIAL:
    ALUMINUM
    $599.99
    Qty in Cart: 0
    Quantity:
    Price:
    $599.99
    Subtotal:
  • FMF Factory 4.1 Muffler 042396 FMF Factory 4.1 Muffler 042396

    FMF Factory 4.1 Muffler 042396

    FMF

    $749.99
    FMF Factory 4.1 Muffler
    18212036
    SKU:
    18212036
    Availability:
    Ships Same Business Day
    Weight:
    6.70 LBS
    COLOR/FINISH:
    ANODIZED
    MODEL:
    FACTORY 4.1 RCT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    END CAP MATERIAL:
    CARBON FIBER
    END CAP STYLE:
    CONICAL
    PRODUCT NAME:
    MUFFLER
    UNITS:
    EACH
    COLOR/FINISH:
    BLUE
    END CAP COLOR/FINISH:
    SILVER
    MATERIAL:
    TITANIUM
    $749.99
    Qty in Cart: 0
    Quantity:
    Price:
    $749.99
    Subtotal:
  • FMF Factory 4.1 Muffler 041602

    FMF Factory 4.1 Muffler 041602

    FMF

    $674.99
    FMF Factory 4.1 Muffler
    18212043
    SKU:
    18212043
    Availability:
    Ships Same Business Day
    Weight:
    7.50 LBS
    END CAP MATERIAL:
    CARBON FIBER
    MODEL:
    FACTORY 4.1
    PRODUCT NAME:
    MUFFLER
    UNITS:
    EACH
    MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    $674.99
    Qty in Cart: 0
    Quantity:
    Price:
    $674.99
    Subtotal:
  • FMF Factory 4.1 Muffler 041592

    FMF Factory 4.1 Muffler 041592

    FMF

    $299.99
    Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps, The lightest mufflers available, Superior power and performance - horsepower improved throughout the rpm range, Feature exclusive proprietary Chamber Core...
    18212018
    SKU:
    18212018
    Availability:
    Ships Same Business Day
    Weight:
    2.85 LBS
    MODEL:
    FACTORY 4.1
    TYPE:
    SLIP-ON
    UNITS:
    EACH
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    END CAP MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    MUFFLER
    $299.99
    Qty in Cart: 0
    Quantity:
    Price:
    $299.99
    Subtotal:
  • FMF Factory 4.1 Muffler 041593

    FMF Factory 4.1 Muffler 041593

    FMF

    $349.99
    Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps, The lightest mufflers available, Superior power and performance - horsepower improved throughout the rpm range, Feature exclusive proprietary Chamber Core...
    18212019
    SKU:
    18212019
    Availability:
    Ships Same Business Day
    Weight:
    2.75 LBS
    END CAP MATERIAL:
    STAINLESS STEEL
    TYPE:
    SLIP-ON
    UNITS:
    EACH
    MATERIAL:
    TITANIUM
    MODEL:
    FACTORY 4.1
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    OFF-ROAD
    $349.99
    Qty in Cart: 0
    Quantity:
    Price:
    $349.99
    Subtotal:
  • FMF Factory 4.1 Muffler 041595

    FMF Factory 4.1 Muffler 041595

    FMF

    $349.99
    Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps, The lightest mufflers available, Superior power and performance - horsepower improved throughout the rpm range, Feature exclusive proprietary Chamber Core...
    18212021
    SKU:
    18212021
    Availability:
    Ships Same Business Day
    Weight:
    3.10 LBS
    COLOR/FINISH:
    TITANIUM
    MUFFLER MATERIAL:
    TITANIUM
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    OFF-ROAD
    END CAP MATERIAL:
    STAINLESS STEEL
    COLOR/FINISH:
    ANODIZED
    TYPE:
    SLIP-ON
    MODEL:
    FACTORY 4.1
    UNITS:
    EACH
    $349.99
    Qty in Cart: 0
    Quantity:
    Price:
    $349.99
    Subtotal:
  • FMF Factory 4.1 Muffler 042383

    FMF Factory 4.1 Muffler 042383

    FMF

    $349.99
    Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps, The lightest mufflers available, Superior power and performance - horsepower improved throughout the rpm range, Feature exclusive proprietary Chamber Core...
    18212023
    SKU:
    18212023
    Availability:
    Ships Same Business Day
    Weight:
    3.50 LBS
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    FACTORY 4.1
    MUFFLER MATERIAL:
    TITANIUM
    UNITS:
    EACH
    END CAP MATERIAL:
    STAINLESS STEEL
    TYPE:
    SLIP-ON
    $349.99
    Qty in Cart: 0
    Quantity:
    Price:
    $349.99
    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 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 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:
    7.95 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:
    7.10 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 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 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

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER