Since R32 and 300ZX brakes are getting harder to find I stuck with altima rotors/maxima pads and 240sx bits for the rear when I fixed my brakes. In the end I can’t even believe I changed the pads cause they had tons of meat on them.
However, going with HAWK pads for the street has made a massive difference in breaking. I would say that if your S car is somewhat stockish in terms of engine power, forget the big brake kits. 180SX SR brakes are very good if the system is maintained.