Well I'm using S13 hubs and coilovers with Z32 calipers.
But I'm then using BMW M3 discs.
The kits here provides re-drilled discs (315, 330, 345mm) and brackets for use with the Z32/S14 calipers or larger wilwood calipers:
http://www.db-power.co.uk/index.php?...44_210_400_401