You better have some damn FD3S calipers, but I'm a helpful guy.
OEM big brake upgrades are this simple in similar chassis vehicles (same make):
- Larger Caliper, corresponding pad
- Modified (shaved or shimmed) caliper bracket or custom fabbed bracket if necessary
- Sufficiently larger rotor. Sometimes redrilling, centering ring, or spacer is needed
- Miscellaneous - Sometimes brake lines/fittings, longer caliper bolts etc. Little *****
I put OEM 11.1" Integra Type-R brakes on a '93 Civic for under $300 total.
This was under 15x6.5" Konigs. Just had to drill Prelude Type-S rotors to 4x100 &
shave 3.2mm off the ITR brackets' mating surface. That was it, bolted it up & had BAMF brakes.
Hub bore, bolt locations, brake lines & fittings etc were unchanged.
Try putting Corrado or "Sport" rotor + FD3S caliper/bracket/pad on & start
taking measurements to see how far different mounting points are then
stock. Hopefully you can just shave or shim the FD caliper brackets.
FD RX-7 calipers are obviously not popular on Miata's because they're rare &
expensive... and heavier than Wilwoods... but I like them because they're less
blang but still very potent like my Type-R brakes.