I've seen a lil about that over on thirdgen.org. I myself dont know that much about it, I started to look into doing my own tuning and someone suggested that, but that was really more than what I was looking for. They've got a whole thread on it over there though for anyone thats a member there.
A forum community dedicated to GMC and Chevy full size owners and enthusiasts. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more!