SKU:357754
Upgrade your Yamaha four-stroke with FMF’s PowerBomb Stainless Header, designed to maximize exhaust flow from the moment the gas exits the engine. The patented PowerBomb module is positioned in the initial stage of the header to optimize scavenging, delivering a flow increase the maker notes as nearly 10%. The outer chamber lets exhaust gases expand and cool, then ramp back up to velocity for improved throttle response across the RPM range.
Constructed from durable stainless steel, this header is built to resist corrosion and stand up to aggressive racing conditions. Its integrated PowerBomb design also acts as a pre-muffler, increasing the surface area available to absorb sound and contributing to a quieter overall exhaust note when paired with FMF mufflers.
Fitment is tailored for Yamaha models, with common reference to the Yamaha YZ250F from 2007 through 2009. FMF sometimes offers moto and supercross variants for PowerBomb headers; the supercross version emphasizes low- to mid-range power, while the moto version targets mid- to upper-RPM performance. Installation is described as straightforward, designed to accommodate the stock exhaust routing with precise engineering for a clean, secure bond to the engine-side flange.
Key benefits include sharper throttle response, more consistent power delivery across RPMs, and a robust stainless build that maintains performance under demanding competition conditions. The 044244 PowerBomb header provides a focused upgrade path for Yamaha enthusiasts seeking measurable gains without replacing the entire exhaust system.
The redesigned PowerBomb is a four-stroke header that incorporates FMF’s patented PowerBomb module at a precise location in the initial stage of the header. By positioning this “Bomb” at a key point in the system, increased performance and flow is achieved through the expansion and contraction of exhaust sonics through the system. Result is a flow increase of nearly 10%! The outer chamber in the Powerbomb allows the air to expand, cool and ramp back up at a higher velocity. Additionally, the PowerBomb is a “pre-muffler” of sorts which helps to lower the bikes sound output by providing more sound absorbing surface area for the sound medium (exhaust gases). On some models, you can choose between a moto or supercross version. The supercross version is designed for more low to mid-range power where the moto version is focused in the mid to upper RPM range.
Upgrade your Yamaha motorcycle with the FMF Racing S/S PowerBomb Header, part number 044244. Crafted from durable stainless steel, this header is designed to enhance exhaust flow and improve overall engine performance. The PowerBomb design features a unique internal structure that increases exhaust scavenging, resulting in better throttle response and increased power across the RPM range. Its robust construction ensures longevity and resistance to corrosion, making it ideal for both competitive racing and casual riding.
Installation is straightforward, thanks to the precise fitment tailored specifically for Yamaha models. The header's compact dimensions allow for easy integration into the existing exhaust system without significant modifications. Whether you're looking to boost your bike's performance or replace a worn-out component, this FMF Racing header offers a reliable upgrade that delivers noticeable improvements.
Constructed with high-quality stainless steel, the FMF PowerBomb header ensures durability and sustained performance even under demanding conditions. This component is an excellent choice for riders seeking to optimize their motorcycle's exhaust system for increased horsepower and improved efficiency. With its proven design and trusted brand reputation, the FMF Racing PowerBomb header is a smart investment for Yamaha enthusiasts who demand quality and performance.
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