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  1. J

    tune for hooker headers and X pipe w/o cats

    Hey guys, I need some help tuning my 08 Gt. I have a SCT SF3 tuner and just put on hooker full length headers and x pipe with out cats. I cant get my tuner to put me to the page where I can insert my afermarket upgrades so that it can tell my cars computer what to tune to. Its running like...