You and me both AJ, that 280mm front disc is IDENTICAL to the 258mm one on our cars currently. Same thickness, stud pattern, everything.
The calipers need to be moved 22mm out via spacers to accomodate our calipers.
Yes, i am very slowly in the process of doing these spacers.
Oh yeah, DBA want nearly $200 EACH for the slotted vareity of these rotors Â
(that was through autobarn in ftg)
EDIT: I'm retaining the standard calipers by the way; i don't think there is a great difference in stopping power between the U12/S13 calipers, they may even be the same albeit the extended mounting tabs for the S13 calipers.