Dido... I think Clasko did a good job explaining that one... The one thing the R/T guy's have to worry about right now it super-charging , I know other cars like Hyundai have an MDS system and an active super-charger, but I also know some MOPAR applications you have to get the MDS deleted...So hopefully Dodge will have the a full set-up for the whole line of V-8's, unless I missed someting and it's already availible...