I would like to restart this thread. Has anyone attempted this upgrade yet with a new T43 TCM and tune in an older car like my 06 Vette? Also does anyone have an A6 tune from 12 or 13 Corvette I can't find one on the tune file depot. If anyone has any information about how or why this might or might not work I would be willing to be a guinea pig. I have read in a couple of places that this just might work but not one has attempted it yet that I know of.