So we know that S3 brakes fade when pushed... the options seemtobe stickwith the same calipers and buy EBC/TarOx discs and pads.. although an improvement will be made this uses stock calipers.. Or spend £1300-1400 on a full monty porsche setup.. Reading "The Golf" magazine ( see www.thegolf.co.uk ) on page 74 red dot are now selling a Brembo conversion.. 4 Pot calipers Seperate bells & grooved discs ( 323mmx28mm ) Adaptor brackets ( for calipers ) Braided Hoses £695. I reckon thats a bit of a bargain. Only problem is the calipers are yellow ( might be a choice of colour ? ) This fits A3/Golf/Leon etc. Not sure on S4 but worth a phone call (David R!).