COMPETITION HEAD GASKET(.18mm THINNER THAN STOCK)FOR HIGHER COMPRESSION RATIO.MAKE A BROAD HORSEPOWER GAIN COMPLETELY THROUGH THE RPM RANGE,SAFELY WITHOUT ANY MACHINE WORK TO YOUR ENGINE.HAVE BEEN MAKING FOR OVER 10 YEARS.FOR AMA/WERA/CCS/COMPETITION DRAG RACING.WEBSITE FOUND @DOCTORDUG,COM

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.50mm and .25mm available (stock is .68mm)please specify thickness wanted,or .25mm will be shipped 1997 1998 1999 GSXR-750

This is intended for a stock bore

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