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  • 042061 & 042037 FMF Factory 4.1 SL Muffler & Power Bomb - 2004-2008 Kawasaki KX250F

FMF Full Exhaust Factory 4.1 SL Muffler & Power Bomb 2004-2008 Kawasaki KX250F

$519.00 MSRP:
Part:
FM-042061&042037-B

Out of Stock

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Powerbomb Header:

FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE.

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.

Factory 4.1 SL Muffler:

The Factory 4.1 is FMF Racing's premier performance exhaust. With 30 years of racing experience behind it, the Factory 4.1 takes advantage of everything we've learned on the race track.

  • Available in natural or blue anodized finish.
  • Horsepower gains throughout RPM range.
  • Available with titanium or high strength stainless steel midpipe.
  • 94dB Insert Included

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