i have the mms sx rear calipers and z31 rotors...and i've been readin that a lot of sx guys use z32 rear calipers...2 piston vs 1......it seems logical that if the sx calipers are setup to work..then the z32 would bolt right up...now i'm not at any point in my car that i need bigger rear brakes...but just wondering if it would work. i know the ebrake setup is dif but that's alright..i have a hydraulic parking brake, adj prop valve..i know the debate..pressure on the seals yada yada....not a dd at all...but would it work? i did a quick search and didn't see anything.