There is a new 5Zigen wheel that will fit over the Sti and DC-5 Brembos (barely). Don't remember what the name of them are. Not too expensive. Almost all the other 16's and even 17's, no way. Those Brembos are HUGE. Even 17X7.5 Volks would not even come close to fitting.
have a look at the pics in my sig there is a fairly close up of the brembos they are VERY VERY fat and the calipers stick out quite a bit there is stuff all clearance between the rim wall and to the spokes (<5mm)