General consensus seems to be that performance mods like that are a waste, except at the very top of the rpm range. That said, Ive not actually tried one. If you happen to go that route, please fill us in/write a lil review for us.
I ended up getting the Superchip, and yes it gave me some power. But a lot of the extra features it has were not avaliable for my jeep. That was of the year, abs, model, ect. Overall it seems alright for what i need.
Superchips is not a good idea. I have worked with this company in the past and I would not trust them as far as I could throw them. I have been to their facility in Florida and know everyone there. Numbers are never what they say they are and they will tell you whatever you need to hear to buy their product. You have been warned.