FMF PowerBomb Header YCRF_bikes Size: S / M /

Size: S / M / L / XL / XXL

LED shows your heat level setting and if the controller is power ON/OFF

Does not include bar pad

literally they also come with the 509 Fit Guarantee

FMF PowerBomb Header YCRF_bikes Size: S / M /The 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