Then lean-burn thing seems to work very well, the car drive perfectly smooth and I am saving gas
I think the biggest improvements were made in the mid-range, it is now much fatter than it was before. I still haven't gotten a chance to really try out the car since the tune though. Traffic was heavy enough coming home yesterday that I didn't want to try too much; plus I just got off with a warning after being pulled over doing 80 in a 30 ("racing" a Lexus SUV).