What is the Power Bomb module and how does it work?

The Power Bomb module is a patented component in the header system. It acts like a pre-muffler, managing exhaust sonics through expansion and contraction. This helps to lower sound output by providing more surface area for sound absorption.

How much of a flow increase can I expect with this muffler?

The design of the Power Bomb module, combined with the muffler's construction, is intended to increase exhaust flow by up to 10% compared to stock systems.

What material is used for the sound-absorbing packing?

The muffler utilizes steel wool packing as the absorbing material. This material works with the perforated core to dissipate sound waves from the exhaust gases.

FMF Racing Q4 S/A Muffler 044195

Name: FMF Racing Yamaha YZ250F 03-05/WR250F 03-06 Q4 S/A Muffler
Brand: FMF Racing
SKU: fmf-racing-fmf-racing-yamaha-yz250f-03-05-wr250f-03-06-q4-s-a-muffler-t14-686923
Price: 495.35 USD
Availability: InStock

FMF Racing Yamaha YZ250F 03-05/WR250F 03-06 Q4 S/A Muffler

$495.35

Only 1 left in stock

FMF Racing Yamaha YZ250F 03-05/WR250F 03-06 Q4 S/A Muffler. Features patented Power Bomb module for improved flow and sound reduction.

Key Features

Fits Yamaha YZ250F (2003-2005) and WR250F (2003-2006).
Incorporates FMF's patented Power Bomb module for improved exhaust flow.
The Power Bomb module acts as a pre-muffler, reducing sound output.
Features a perforated core and steel wool packing for sound absorption.
Designed to increase exhaust flow by up to 10%.

This muffler is designed to fit Yamaha YZ250F models from 2003 to 2005 and WR250F models from 2003 to 2006.

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Product Details

FMF Racing is well-known for making performance exhaust systems. This Q4 S/A Muffler is built for your Yamaha YZ250F from 2003 to 2005, and your WR250F from 2003 to 2006. It's designed to give your bike a noticeable boost in performance and a more controlled sound.

At the heart of this muffler is FMF's patented Power Bomb module. Placed strategically in the header system, this module helps manage exhaust sonics. It works by allowing exhaust gases to expand and contract, which can lead to an almost 10% increase in flow. Think of the Power Bomb as a pre-muffler; it has a perforated core that lets sound waves pass through to absorbing material, like steel wool packing. This process helps to lower the overall sound output of your bike by giving the exhaust gases more surface area to cool and dissipate.

This muffler is a solid option if you're looking to get more out of your Yamaha's exhaust system. It's built to integrate well with your bike's existing setup, offering a blend of improved performance and a more manageable sound profile.