On a 97 from what I noticed trying 3 to 4 different brands is that they all yielded the same performance. Bottom line is that the 97 model years injectors cannot flow enough to get the big power so its pointless to get anything more that a towing program. Higher flowing injectors can be bought but then there is the issue of high EGTs and no factory intercooler. Get yourself a program/chip designed for towing, Tymar intake, aftermarket downpipe, gut the cat and you will be pretty happy. If you want more power than that plan on spending a descent chunk of change for injectors and a intercooler. If its an auto make sure the factory POS non flowing cooler has been upgraded also. Many auto trans have failed because of it. Any questions let me know, and good luck. Been here done that.:;