Evening all, lets straighten the record.
R32/S3/Cupra brakes will fit the front, they are plug and play. As long as you buy the hoses! The hoses are different. Splash guards are bigger too.
The S3/R32 rears will also fit, and are evn more plug and play! The hoses and all other bits are the same. The only differnce on the rears are the guards. They will not fit. I used my old guards, and gently bent them out of the way.
In both cases you do need to buy the correct carriers, as in if you are buying R32 brakes from the bay, make sure they come complete with the carriers.
The only pain in the aris was the fact I to take the centre console out, to release the handbrake, and to adjust it back up post new calipers.
Fronts on

Rears


Please ignore the hacksaw, i had been trying to get the S3 guard to fit. And to get the Ed 30 on off you have to cut a strip off, or take the hub off.