I had been working the tune myself and felt I had hit a wall. Decided to have it professionally tuned and would like anyone to review that wants to and give me their opinion. Car (2012 C6 Grand Sport A6) made 458RWHP & 436TQ. Idle feels a little high and car kind of felt faster when I gave up... I am sure it is fast now and is just in my head. Cam, Headers, X-Pipe, BTR Shaft Rockers, Dual Springs, Titanium Retainers, Melling HP Oil Pump, AFE Cold Air Intake... etc.
C6 Final Tune HP Tuners.hpt