I tried on some enkei rs6's a couple weeks ago, et35, 17x8. The fit was perfectly flush, a mild, mild stretch would have been perfect on them. Since the fit that perfect, it has been the et I'm currently looking at. I will post up this neat little tool I found on scs when I go home on lunch. You input the old width and et, and tells you how many mm the inside will move from the strut and how many mm the edge of the lip will move out to the fender.