FMF PowerBomb Header 044176 1832-0038 PowerCore 4 HEX Slip-On Muffler Reinforcements consisting of aramid fiber

Reinforcements consisting of aramid fiber and polyamide for abrasion resistance performance for fourth finger

Hardened splines wont slip or rotate

Fitment: Yamaha YZ-450F + YZ-250F 2006-2007 Models

Advanced synthetic forefoot lining

Removable nose guard provides excellent coverage from roost

FMF PowerBomb Header 044176 1832-0038 PowerCore 4 HEX Slip-On Muffler Reinforcements consisting of aramid fiberUtilize FMF's patented module precisely located at the initial stage of the header Position "Bomb" increases performance; horsepower is increased as much as 10% Act as "pre muffler" helping to lower the decibel output The expansion and contraction of exhaust sonics through the system causes increased flow Not for use with stock muffler.