FMF Powerbomb

FMF Powerbomb

Regular price
Sale price

 **FMF’s are in and out of stock based on availability from the manufacturer. Lead times range from 2 weeks to 12 weeks. Email us to confirm if the one you need is in stock at the time of order**

The redesigned PowerBomb is a four-stroke header that incorporates FMF’s patented PowerBomb module at a precise location in the initial stage of the header.

By positioning this “Bomb” at a key point in the system, increased performance and flow is achieved through the expansion and contraction of exhaust sonics through the system.

Result is a flow increase of nearly 10%! The outer chamber in the Powerbomb allows the air to expand, cool and ramp back up at a higher velocity. Additionally, the PowerBomb is a “pre-muffler” of sorts which helps to lower the bikes sound output by providing more sound absorbing surface area for the sound medium (exhaust gases).

On some models, you can choose between a moto or supercross version. The supercross version is designed for more low to mid-range power where the moto version is focused in the mid to upper RPM range.




TYPE A (PN#045364)

  • 13-14 HUSABERG FE350 
  • 14-16 HUSQVARNA FE 250-350 
  • 14-16 250 XCF-W 
  • 12-13 350 EXC-F 
  • 11-12 350 SX-F, XC-F 
  • 12-16 350 XCF-W


    Sound levels at idle speed tested at 1' above and 1' behind each
    muffler on the same 21' 500 EXCF tested back to back.

    Stock muffler 82
    Stock w Pro Moto end cap / ultra silent insert 85
    Stock w Pro Moto end cap / silent insert 86
    Stock w Pro Moto end cap 88

    Graves Motorsports w db killer 85
    Graves Motorsports 89

    Fmf q4 84
    Fmf 4.1 88
    Fmf power core 88

    Lexx w db killer 86
    Lexx w spark arrestor insert 87
    Lexx 89

    Akropovic 85