Bought some 987 Cayman S wheels on Kijiji a while ago, mounted Michelin Pilot Sport 4S and put them on my 2001 Boxster S yesterday. Upgrading from the stock 17 inchers. Lovin the look and feel. No appreciable deterioration in ride quality and car shows quicker turn in and less understeer. Wasn't expecting a win/win, but I'll take it!