how many people have ran into this problem? 3rd day with having a cobb stage 2 map and tbe and i got it, how much damage does it do to your engine and for the solution, just go to subaru and buy those part's that cobbtuning.com stated and done? sweet post # 555
or try the overboost map from cobb? i believe they have a high and low wastegate duty cycle for cars that overboost such as yourself Stage 2 93 oct - LWG Stage 2 for vehicles that over boost using the standard Stage 2 map. 93 octane fuel. USE AT YOUR OWN RISK.
2006 v2 maps http://www.accessecu.com/accessport/subaru/new/06STiMaps.html u must have the 07 huh. u could load the 06 map in and see what happens or call cobb, they have really awesome customer support.
im no AP pro so im not sure BUT i WOULD NOT LOAD a MAP thats not for your car you may brick your ECU Unless you are certain that you can load other year ECU maps i would not recommend it. I would not band aid the issue - get it tuned for your the love of god