subiekid was just trying to help you out. He was not berating you. This specific forum is for other "factory" turbo Vehicles.... you may acquire some input here but I think you would get more sound advice in the 2.0l forum (since you're madifying a wrx td04). most here do not get involved with Cobb's tuning packages (they don't work with our vehicles - grrrrrr) and will not be able to answer your Q's with much experience. also, this forum is DEAD compared with the 2.0l forum - but do as you wish.
I'm interested in your project and hope you get the info you seek. I personally have nothing to offer (I'm just a "newbie" - haha - I just don't post much), and no, I have not heard of anyone running a td04-16G, only the td05-16G.