FMF Racing - FMF042410 - 25+ Kawasaki KX250F 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.

The FMF Racing FMF042410 is a 4-stroke exhaust system component featuring FMF's patented Power Bomb module. Positioned at a precise point in the initial stage of the header system, the Power Bomb is designed to support exhaust flow and help manage sound output. FMF states that the system can provide a flow increase of nearly 10%.

The Power Bomb functions as a pre-muffler by providing additional sound-absorbing surface area. Exhaust sound passes through the perforated core into steel wool packing, allowing the air to expand, cool, and ramp back up at higher RPMs. This design helps the exhaust gases become absorbed before continuing through the system.

Key Features & Performance Benefits

• Power Bomb Module: Incorporates FMF's patented Power Bomb technology in the initial header stage.
• Enhanced Exhaust Flow: FMF states that the design results in a flow increase of nearly 10%.
• Sound Absorption: Uses a perforated core and steel wool packing to provide additional sound-absorbing surface area.
• 4-Stroke Design: Engineered as a 4-stroke header system with a Power Bomb pre-muffler function.

Key Product Specifications & Technical Data

• Brand: FMF Racing
• Part Number: FMF042410
• Product Name: 25+ Kawasaki KX250F Hex Q4 S/A Muffler
• Part Type: Powersports
• Engine Type: 4-stroke
• Power Bomb Module: Included in the header system design
• Sound-Absorbing Material: Steel wool packing
• Units per SKU: 1

What's Included in the Box

The product data identifies one unit per SKU. No additional box contents are specified.

Fitment

Fits 2025 Kawasaki KX250X and 2026 Kawasaki KX250X.

Fitments:
2025 Kawasaki KX250X Base
2026 Kawasaki KX250X Base

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