i had gm customize every inch of my car to handle the power....i can get up to 100 mph in first gear with a tune....but my car backfires like a subaru for 10 minutes after i turn it off...
you should demand your money back for those chips, the add said 500hp!!!!! not no damn 374!!!!! they couldnt even get you into t he 400 range like the old ad stated...WTF...waste of fucking money