My SRT8 tuning experiences agree with the previous post. I had to add a lot of fuel - more in the low and mid then in the high range to get mine running right on the 93 cai tune. I am happy with the results tho...

I used the datalogging to get rid of knock retard by adding fuel instead of retarding timing which would have the same effect of having ST KR - less power due to the pulled timing. Shortened life of the cats? Don't know or care... less mpg? I get 23 on the highway (2006 Charger SRT8) so I am happy ...