The IAP map was pretty good stock. I just did WOT to get the feel for the software, it leaves a lot to be desired in the way of map changes, and I did find one bug in it, but for free I am not complaining. It works pretty good stock, but it's the big fuel system that will make or break the Freeware. I did disable IAT and put it in dyno mode, although its my first bull, it's not my first rodeo lol. BTW AFR was the typical 13.0 ish after the tune.