I read the TT upgrade thread and although it does not make much sense to me why I would go Single Turbo after spending hella money to put a TT in my car...I read something about a Split flange GT 35R set up T4 DBB. I was wondering if anybody knew what kind of power this would produce and how much $. I want it to be bolt on. throw me some options PLZ. 350-400WHP is what my goals are.