Hi Guys, I know there are other threads about this but I just wanted to get confirmation for the specific wheels I have. Car is an A4 1.9 Sport. Presently on standard Sport suspension, will be moving to coilovers soon. The wheels are 18" Kahn RS-R's off a Porsche 911. Fronts are 8J ET49, rears are 9.5J ET52. Obviously, I need adaptors to make them fit, the question is what thickness should they be to fill the arch and avoid scrubbage? The car wont be slammed on its rails and I'm not looking for huge camber or 'poke' (yeah, thats right, I'm down with the kids!). I just want it to sit nice. Any help will be massively appreciated. As I right this I realise that I didn't note what size tyres are on them, though I can get that info later if needed.