Customer came all the way from Michigan today for a dyno tune. He had a shop who is big into 3800's do canned tune for him. He did some research and found that I have tuned a number of these cars.
The onlymodifications to this 144,000 mile GTP are Pulley, Colder Plugs, and a Cold Air Intake. It is not a power house. However the Dyno Tune was well worth it. He is making more power with a safer A/F and no knock retard.
Blue Lines=DTM Tune
Red Lines=Canned Tune from Michigan
http://75.180.27.125:50001/Dyno%20Graphs%20and%20Pictures./Dyno%20Graphs/Gary%20Hester.jpg