FMF Racing

FMF Racing Yamaha YZ250F 06-09/YZ450F 06-09/WR250F 07-13/450F 07-11 Q4 S/A Muffler

$449.99

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Regular price $449.99
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FMF Racing Yamaha YZ250F 06-09/YZ450F 06-09/WR250F 07-13/450F 07-11 Q4 S/A Muffler


A 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the "Bomb" at this key point, the expansion and contraction of exhaust sonics through the system resulting in a flow increase of nearly 10%. The surface of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up at higher air pressures (RPMs). The Power Bomb is a "pre-muffler" of sorts, which helps to lower the bike's sound output because it provides more sound-absorbing surface area to allow the exhaust gases to become absorbed.


ATTRIBUTES: false, false, false, Unknown, powersports, Compliant, false, t, 1


BRAND: FMF Racing


MPN: 044232


SKU: 686926


Fitment:
Yamaha WR250F Base 2007 to 2013
Yamaha WR450F Base 2007 to 2011
Yamaha YZ250F Base 2006 to 2009
Yamaha YZ450F Base 2006 to 2009

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: Compliant
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1

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Cuts Through the Worst Mud, Fast

Mud Melter's formula breaks down caked-on dirt, clay, and trail grime without scrubbing. Spray it on, let it work, rinse it off — your bike is clean before the next moto.

  • Bikes

    500+

    cleaned

  • Race seasons

    10+

    tested

  • Satisfaction

    100%

Safe on Every Surface

Formulated to be tough on mud but gentle on plastics, rubber, bearings, and graphics. No harsh solvents, no damage — just a clean bike ready for the next ride.

Made in a Real Race Shop

We didn't hire a marketing team to invent a product. We built Mud Melter because nothing else worked well enough on the bikes we were actually racing and rebuilding.

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