The vendor is Modern Day Muscle Cars and it has to be one of the worse so called custom tunes I have seen in a C6 with a A4, heads, headers, and 9 PSI supercharger with stock bottom end and pistons
This tune is a fricking timebomb and the engine has already lost heads gaskets why which when when see the tuning data you can see why
View it here
http://teamzr1.com/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=8&t=000067