12psi max with a good tune. I think that is all the stock MAP sensor will take anyways. I'd have a 8psi wastegate spring and buy a manual boost controller also. I'd run 8psi daily and 12psi occasionally. I'm running a XSpower manifold and it looks good. It is one of their new pieces and looks to be braced pretty well, can't beat it for the price even if it needed to be rewelded. I think they fixed there newer turbos and have heard good things from them as long as you run an oil restrictor w/ them. I personally wouldn't buy their wastegate, just b/c if that sticks then it might cost you a motor. Haven't heard anything about their BOVs, but those arent that expensive and if you really want to save money just buy a dsm one for like 15buks. Their Intercooler looks good for the money too, kinda hard to mess up an intercooler you know. Just spend some extra $$ and get good fuel managment and have it tuned good and I think you'll be good to go