hey mate im running the same turbo on my a12 i have it injected aswell and running 15.5 psi with a14 head i got about 80kwatw so that should give you an idea. this was before i upgraded the exhaust its now a 2.5 inch mandrel bent system, in the piccy you can notice the massive dip in the the graph this was from the exhuast being to small it was only a normal 2 inch exhaust. the graph is now a smooth ride all the way up to 80

i also had a a12 blow throu carby setup with the same turbo which got 69kwatw but it only reved to 4grand