PowerBomb Header - YAMAHA

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Utilize 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. FITS - 2007-2011 Yamaha WR 450 F, 2007-2009 Yamaha YZ 450 F Show more