standard brakes on stags are friggen tiny for the size of the car. i'd look at upgrading for sure, even standard r33gts-t items are bigger (and what the stag should have come with from the factory IMO)
if you are serious about brembos pm me, i have a front pair of r33 gtr brembos (same as 260rs items) - calipers, pads, bolts, retainers, lines, rotors and the deal sealer - a bm57 master cylinder to go with them
rotors aren't in the pic sorry