I recently put a set of 993 17 inch wheels with Sumitomo HTZR's, 225.45's and 255.40's on my S2. Now I am thinking of going back to my 16 inch wheels. The car is a lot harder steering and the drivers rear scrapes on right hand turns. I think it's telling to to adjust ride height and maybe get some new shocks. But any ideas on alignment spec changes with these? Or maybe some different pressures would help? I really don't know. Thanks in advance.