I'm currently working on a bolt on kit for Celica supra's and Ae86's that utilize Mazda Rx7 4 pot front aluminum calipers and Nissan S13 200sx 280mm front discs.
A mk3 supra Brake master cylinder and booster is the ideal upgrade for celica supra's Braking system and will be needed to do the swap as the Mazda calipers have a larger surface area over all 4 pistons. As long as you run 15" wheels clearance won't be a problem The Rx7 / 200sx set up will be the ideal upgrade for anyone looking at punishing their brakes or have fitted a more powerful engine and both have the same disc/ caliper width so properly matched with no gap to make up unlike fitting them directly to standard width brake discs.
Pictures of my progress to follow, but i will be designing the kit to include all the hardware to mount the calipers to your hubs. The brackets will be laser cut from high quality EN24T steel plate and i won't release anything till it's proven.
D-rifting R-usty I -credibly F-unky T-yota's o- f Y- esteryear