Remember that when you go to a larger size if you don't go to a lower profile tire your speedometer will be off. There is no way to recalibrate it unless you do it in your head like I do. I had 17" 55 series stock tires on my GT and now I have 17" 40 series tires on. My speedometer reads 3.9 mph slower at 60 mph.
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\'05 Stone White SRT4
\'04 Graphite PT Automatic
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