The OP hasnt mentioned if he even has a 3" cobb downpipe??? The way his post is written, if taken literally, states that he flashed a stage 2 map and took his car to the track?? . . . The cobb stage 2 instructions are clear not to mix different brand downpipes and air filters than what they specify and not to go catless on the stage 2 ap tune.
The source of most of the overboosting on OTS map. If your not using the parts the tune was intended to be used with then why expect it to be a good tune for the car.