Ok,
Interested in a set of these brackets for my hawkeye wrx sti. I expect them to fit.
My 5 cents of contribution:
When I was messing around with prodrive/ alcon calipers( used to be an official upgrade from subaru, before the golden brembos appeared), I needed new discs, which are out of production.
But it appeared that bmw X3 discs fit, despite having a little thicker brake surface and having a diameter of...330mm! Bolt holes will have to be redrilled, but these discs are readily available and cheap ( here in europe)