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  1. How do I know if my car has Trifecta tune?

    Saturn Sky Performance Discussion
    So, I bought my car from a third party. He didn't seem all that hip to the history. It's a 2008 Redline. I tried the cruise control both ways, nothing. Today, I drove in competition mode and it seemed to hit 20-21 lbs of boost a few times. My question is, is that proof it has a tune? Does the...
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