0352Marine
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- Mar 6, 2011
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I have a diablo predator tune and when I try to instal the wheel size it throws the speedo way off. for example I will be traveling about 40mph and the speedo says I'm doing 90mph. My tire size is a 265/70R17 which is what I entered on the tuner when it did this anyone have any ideas? Any help would be greatly appreciated.
