FMF Racing Honda CRF450R/X 04-12 SS Power Bomb HeaderThe redesigned PowerBomb is a 4 stroke header that incoporates FMF's patented PowerBomb module at a precise location in the initial stage of the header, resulting in performance gains and improved flow. Outer chamber allows the air to expand, cool and ramp back up at velocity Increased flow up to 10% FMF Racing Honda CRF450R X 04 12 SS Power Bomb Header The redesigned PowerBomb is a 4 stroke header that incoporates FMF's patented PowerBomb module at a