I am now an owner of a very nice "91", Very nice car and it does have the " hypertech power chip" installed. Can anybody tell me if there should have been the original GM chip which was replaced with the hypertech power chip or was the original chip just re- programed. I was told that if I ever take the car in for repairs (Tune-Up) I need to tell them it has the chip. So what do I do here, I did not ever get the programer if it is needed. Thank-You