hey are the DA front calipers bigger than the EX/Si ? If yes, would the DA front calipers bolt on to the Si knuckles of a 90 hatchback? Im thinking of getting Da Calipers and hope they would bolt on to the knuckles of my '90 Si. or is it best to get the whole knuckle from the DA?

 

No, the DA and EX (Si calipers are smaller) calipers are the same size and they will not bolt up to your Si knuckles.