Car is currently in the garage having the AP conversion fitted, so at the end of the week Ill have a pair of Nissan 4 pot calipers for Sale
Std they fit a 280mm disk, and 28mm thick, and with a fabricated caliper bracket will fit any car - though 16" wheels are ideally needed if your fitting 280mm brakes.
Painted red, with the "NISSAN" logo polished - though the lettering could be ground off.
£100 the pair
PS On the Last S14 I had, these calipers where used as part of a 310mm x 30mm brake conversion, so you can go bigger than the std 280mm