Disclaimer: I have no affiliation with PCM for Less, I'm just sharing my results. This is their website:
http://www.pcmforless.com/
Some of you may have seen me post some of my issues due to my 2006 H3 I bought with a dealer installed package (Pro X-treme), which included an air intake, exhaust, 4" lift and 35's. I have to give props to the dealer for stepping up and making this right. I had seen many people on this site get good results from PCM for Less, and I was able to convince the dealer this was the solution and they paid for it and provided me with a loaner. The issues: very erratic shifting and very sluggish performance, especially compared to my previous stock 2006 H3.
The shifts make a huge difference now, and I can actually feel the truck "pull" a little, not quite like my Vette, but it's a noticeable difference. I'm sure some of that is the air intake and exhaust combined with the tuning. I had a 2007 H3 loaner a few weeks ago, and I can easily say my truck pulls and shifts better than the '07. My programming removed the limiter, adjusted for 93 octane fuel, 35" tires and level 2 shifting (3 is the highest/hardest).
As I stated, the dealer took care of it, but I did have a couple brief conversations with Kelly at PCM for Less and she was great to deal with. And while I didn't pay for it, their current special of $99 for the H3 PCM tuning is a no-brainer. If you've been on the fence, get off and do this. I'm sure we've all (more often than we want to admit) have spent $99 on worse things.
Feel free to ask me any questions, though I've summed up all I can think of. Also, as a reference, I've modified most of my vehicles for some time now very heavily, and my SOTP judgment is pretty good. You usually won't see me give kudo's unless I'm very impressed, not easy to do.
