What kind of performance improvements can I expect with this header?

This FMF Racing Megabomb Header is designed to improve performance along the bottom and mid-range powerband. It combines benefits of longer and shorter headers to give you a more responsive feel where you need it most.

How much does this header reduce sound?

The Megabomb Header is engineered to effectively reduce sound output by as much as 1.5 dB. This can be helpful for trail riding or in areas with noise regulations.

Can this header be shipped to California?

No, this header is not CARB approved and cannot be shipped to California due to emissions regulations.

2021-2022 Kawasaki KX250X Header | FMF Racing 042391

Name: FMF Racing Anodized Titanium Megabomb Header
Brand: FMF Racing
Price: 522.87 USD
Availability: InStock

FMF Racing Anodized Titanium Megabomb Header

$522.87

On Backorder — Expected to ship by Apr 28, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2021-2022 Kawasaki KX250X. FMF Racing Anodized Titanium Megabomb Header improves low and mid-range power.

Key Features

Fits 2021-2022 Kawasaki KX250, KX250F, and KX250X.
Constructed from anodized titanium for a lightweight and durable build.
Patented FMF technology improves low and mid-range power output.
Reduces sound output by up to 1.5 dB.
Designed as a direct replacement for the stock header.

Secure CheckoutFast Shipping631-982-0042

Fits these vehicles

Kawasaki KX250 2021
Kawasaki KX250F 2021
Kawasaki KX250X 2021-2022

Product Details

Built from anodized titanium, this FMF Racing Megabomb Header is designed to give your 2021-2022 Kawasaki KX250X a noticeable boost in performance. The patented FMF technology works by combining the advantages of both longer and shorter header designs. This means you get improved power delivery in the low and mid-range of the powerband, where you often need it most for off-road riding.

Beyond just power, this header also plays a role in managing your bike's sound. It's engineered to reduce sound output by as much as 1.5 dB, which can be beneficial for trail riding or in areas with noise restrictions. The titanium construction not only keeps the weight down but also offers good durability for the demands of off-road use. This header is a direct replacement for your stock unit, making installation straightforward if you're comfortable working on your exhaust system.

While this header offers significant performance gains, please be aware that it is not CARB approved and cannot be shipped to California. If you're looking to enhance your KX250X's power and sound characteristics, this FMF Racing Megabomb Header is a well-built option.