*UPDATE*
This project is now under Sea2Sky-tuning and will be retailed by him. I'm still going to develop it but with weasy help

Also the 12.7" extension is no longer in production, there will be one but im lacking funds to buy any more calipers
OEM Bracket Project Outline:
A Bracket adapter to use lexus/Toyota calipers which uses larger rotor disk and retain the use of that calipers pads and rotors (supra n/a).
2piston calipers (*confirmed)
Supra4 NA*
GS300 93-97
SC300 99-00
SC400 92-00
LS400 93-94*
Im still looking for a compatible dust shield to use but im guessing most of you will remove that.
now that out of the way heres a peek how it will mount. it's rather confusing but follow the letter pairing.
1 14.18mm 0.558" Supra NA to TT
2 35.50mm 1.280" Mr2T91 to Supra TT
3 24.00mm 0.945" Mr2T93 to Supra TT
4 09.82mm 0.387" Mr2T93 to Supra NA
5 18.32mm 0.721" Mr2T91 to Supra NA
6 08.50mm 0.335" MR2T91 to Mr2T93
OEM
A to B
11.6" (B axis series)
B to C
B to D
12.7" (A axis series Discontinued)
A to E
A to F
Omit (detached experimental series)
I to G
H to J