PowerBomb 042389 Size:OS the PowerBomb is a "pre-muffler"

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)

An excellent choice for tight tracks and supercross track applications

this pipe will offer what you’re looking for

this system delivers a significant reduction in weight while improving overall power and throttle response

PowerBomb 042389 Size:OS the PowerBomb is a "pre-muffler"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