4-pots work great, and will fit most 17x7.5 wheels (Rota Battles Pictured), 16x7 2.5RS 5-spoke wheels are my winter set, they were engineered to clear these brakes on the V5 STi.
See pic below. It's huge, so I didn't want to post directly.
http://pics.shorty.org/files/75/DSC00475.JPG