iv got them on my s1. not driving it yet but to do it i drilled hub to accept bigger bolts that cossy calipers use. face about 4 mm off the escort hub or caliper carrier..... basically offer up the caliper with disc and ul see it doesnt fit, so hav a ook and think and ul figure out why u need to shave some hub down... and how much. i also rang a company that makes the braided hoses for this upgrade wich includes normal fitting to metel brake line but a banjo type end at caliper side (when fitting u need to put the brake line on before bolting caliper up as no clearance, becomes clear when doing it) but after all this u then need spacers to adjust the offset (depending on the wheel chioce as mine were fwd but escort cos wheels might be fine as already have correct offset for brakes)

think thats about it mate. i no seems long but only a few things to ake on board n becomes self explanetry as u go along!