The FMF PowerBomb header can be combined with their popular Q4 slip-on muffler to to really wake up the engine on your WR250R or WR250X, as well as give it a much better sound.
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).
Fitment: 2008-2018 Yamaha WR250R / WR250X
Improves Low to Mid-Range power
“Bomb” is precisely positioned to maximize the expansion and contraction of exhaust sonics
Outer chamber allows air to expand, cool and ramp back up at a higher velocity
** In Stock - Usually leaves our warehouse same business day
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