Hi guys looking. for a good and reasonable performance shop to help diagnose my car near lehigh valley please let me know any recommendations you have thanks
APTuning is in Lebanon, not sure how far that is from you. There's another thread in this regional that had a bunch of recommendations for places in your area.
If you drive a bit east on 78 to around Rte 22 & I-287, There is Redline SpeedWorx in Green Brook, NJ. (their old location would have been much closer, but it was a tiny shop).