roperro Posted July 21, 2009 Report Share Posted July 21, 2009 I have added KB super charger to my GT500. 700+ HP. 1st gear is useless . Need more traction. I am thinking of either: 305/45R18 -- wider and taller, 305/35R18 -- wider but shorter, 345/35R18 -- real wide and taller. Anyone have experience with or know if any of these will or won't work? Thanks Roperro Link to comment Share on other sites More sharing options...
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