so buddy of mine wants me to tune his 2007 grand prix 3.8 supercharged, is there a guru here for these cars? someone with some good tips and tricks...cars basically stock except for a cat delete and CAI any help thanks
so buddy of mine wants me to tune his 2007 grand prix 3.8 supercharged, is there a guru here for these cars? someone with some good tips and tricks...cars basically stock except for a cat delete and CAI any help thanks
There are plenty of us on here that spent a LOT of time playing around with those cars years ago. If you have any specific questions, there is still help to be had here.
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