Hi guys just want some advice please. Ive currently got a mk4 1.3 popular rst look-a-like. I Think the brakes are on the way out so I was woundering if RST disks and calipers would fit? Would they bolt on or would brackets/spacers be needed and would I feel much difference (does the servo need changing or is that Irrelevant?). What should I look for when buying (probably second hand) disks/calipers?

Thanks very much

Colin