Hello.
I bought two kits with brake calipers from Swedish salvage yard.
My kit from a Maserati and this yellow from a Alfa Romeo Quadrifoglio.
Complete with adepters, SS lines and Brembo OEM street pads.
Clamping force/total piston diam same as original.
Brembo F 5495/ R 3228
OEM F 5652/ R3322
Brake bias 63/37
This adepters is made for OEM discs if you want a BBK for the street or light use on the track/autocross. Save money and take step 2 when you’re discs are torn.
Then you can make shims for bigger discs.
I have 378*32 in the front on my 1M and you can use 380*28 discs in the rear from M2 comp.
Calipers has been polished after this picture. Alfa Romeo is now gone.