BobaFettm.... First off... I'll be gasing up tomorrow morning so I'll have some fuel mileage numbers then.

I think the numbers are going to be good.
As for noticing the extra power and getting use to it... The getting use to part was super easy

.... And yes the power is noticeable and very much enjoyed. Dave Burns should be grinning from ear to ear about now. He was getting his done at 4:00 today.
Now for the autocross part.... The Crossfire is in DS (D Stock) for now. I'm sure the SCCA will be changing it to CS at a minimum this year. As far as I know, I'm the only one in the country that has an autocross time in the SCCA books. My times are more consistant with C Stock and B Stock than DS. And now with the chip I think I will be a firm B Stock car. But if they want to leave me in DS that's fine with me (money and a trophy).