You can tune all the engine options for the commander to control lots of stuff and programming the tune for running certain fuels is a part of that as well as the shift patterns in the trans and all kinds of stuff. The Hemi is not the only engine that is tunable and as I always like to rub it in it's not real Hemi anyway well, I think I'm funny LOL. There is no need to tune like the OP said just for a CAI but lots of guys are getting a lot better performance and MPG using programmers and everyone seems to love the way the trans runs afterwards.