Went outside yesterday and whipped of the calipers of the s2 and got them down the shed for a overhaul.I bought two new sill repair kits, caliper paint discs and pads.Started to strip them and notice one piston was smaller than the other now im thinking ones and xr3i caliper does this sound right.I spent about £17 on each ford sill repair kit. Think ill have to get new calipers because the pistons were warped anyway.