Wouldn't you have the same clearance issues as the 4/2 pot '06-'07 WRX brakes? Or do the legacy's have the "H6" brakes?
There's a thread on Nasioc, and another on ClubWRX that I've found looking for info on the same - trying to get cheap 16" wheels to put snow tires on the wagon.
This any help:
http://forums.nasioc.com/forums/show....php?t=2055081
?