I have a turbo-back exhaust, no up-pipe at the moment....actually it is sitting on the dinning room table. I have pretty much the same stuff as your friend, but am also running 2psi over stock boost and have a larger intercooler.

Who knows, maybe we can get a run in when you are done with everything. I am looking at ditching the wheels I have now for a set that will be lighter then the stock ones, so we'll see.