FMF Racing FMF044426 Yamaha YZ250F/YZ250FX/WR250F Hex 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.

Brief Description: The FMF Racing FMF044426 is a 4-stroke header system featuring FMF's patented Power Bomb module. Positioned at a precise point in the initial header stage, the Power Bomb is designed to improve exhaust flow and provide additional sound-absorbing surface area.

Key Features & Performance Benefits:

• Power Bomb module: Uses FMF's patented design to support a reported flow increase of nearly 10%.
• Pre-muffler function: Helps lower sound output by allowing exhaust gases to interact with additional sound-absorbing surface area.
• Perforated core: Directs sound into the steel wool packing for absorption.
• Exhaust management: Allows air to expand, cool and ramp back up at higher air pressures and RPMs.

Key Product Specifications & Technical Data:

• Brand: FMF Racing
• Part number: FMF044426
• Part type: Powersports
• System type: 4-stroke header system
• Module: Patented Power Bomb
• Core design: Perforated core
• Absorbing material: Steel wool packing
• EPA status: Compliant

What's Included in the Box: The product data identifies one unit per SKU. No additional included items are specified.

Fitment: Fits 2014 Yamaha YZ250F; 2015 Yamaha YZ250F, YZ250FX and WR250F; 2016 Yamaha YZ250F, WR250F and YZ250FX; 2017 Yamaha YZ250FX, WR250F and YZ250F.

Fitments:
2014 Yamaha YZ250F Base
2015 Yamaha WR250F Base
2015 Yamaha YZ250F Base
2015 Yamaha YZ250FX Base
2016 Yamaha WR250F Base
2016 Yamaha YZ250F Base
2016 Yamaha YZ250FX Base
2017 Yamaha WR250F Base
2017 Yamaha YZ250F Base
2017 Yamaha YZ250FX Base
2018 Yamaha WR250F Base
2018 Yamaha YZ250F Base
2018 Yamaha YZ250FX Base
2019 Yamaha WR250F Base
2019 Yamaha YZ250FX Base

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