Ok thanks for the responses. My tires are the cheapest Kuhmo's GM can buy. I'm rate at 44psi I have them set to 50psi cold. There has been some change as for the harsh ride. Its not that bad I've driven on extreme low profile tires on 19" rims so its not that horrible. Thanks for the help.
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2 cars one never gets driven the other is an MPG project already at 5% increase in standard driving economy CAI and Pulstar plus. Thinking weight reduction next year.
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