I had a 14 gt premium A6 for a while a few years ago and had a SCT x4 with a mike rousch tune on it, i no longer have that car but i still have the SCTx4 with tune on it. I recently just got a deal on a 13 base gt A6 and moved back into a 5.0 and id like to apply the same tune to this car however is this safe to do so or do i need a full retune from mike or similar. The PCM is the same and the tranny and engine are the same, the only changed thing is the DA is different now from where i lived before with the other car. I see no reason why this would be a problem but asking here beforehand.