What M/C master cylinder can i use { UPGRADE} ?

Ok, if u could answer this it be GREAT what master cylinder can i use
{ GS-R,ITR,Integra etc} that will be better if i upgrade thebraking system ???
Also if i have rear DRUMS what master cylinder can i use ?
are they all the same ??
Thanks
{ GS-R,ITR,Integra etc} that will be better if i upgrade thebraking system ???
Also if i have rear DRUMS what master cylinder can i use ?
are they all the same ??
Thanks
