NOOOOOOOOOOOO!

you need 2wd Discs (assuming you mean for the front...) to fit on the S1/S2 with 4x4 calipers.

also expect to need 1-2mm thick spacer washers between caliper carrier and upright to get the caliper centred over the disc


if however, you are referring to rear discs, then yes, you want 4x4 discs with 4x4 rear calipers