[Dale Pittman]

What do I need to buy to be able to read the various settings in the ECU and to be able to load in new programs to improve the preformance?

Is there a specific programmer that works better than others? Are they all compatiable with various GM cars and trucks? Meaning if I got one that works for a STS-V would it also work for a new Tahoe, Denali, or Escalade, etc...?

Thanks,
Dale