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Designed to allow maximum air flow while trapping 90% of the dirt
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Twinwall®'s superior design construction allows it to withstand the hardest hits and biggest get offs without compromise
Friction reducing QUADRA-X Rings
FMF Powerbomb SS Header '04-08 KX250F & '04-06 RMZ250 | 042037 gutsvshusky Designed to allow maximum airThe redesigned PowerBomb is a four stroke header that incorporates FMFs 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
