Long time lurker, first time poster. Looking to replace wheels (and tires) on 05 Boxster. Have the OEM 17s on there now and would like to upgrade to either the 19" sport designs or the 18" lobsters. Do both fit without problems rubbing or need spacers?

Thanks!

Also, if anybody knows of a set for sale please let me know. I'm currently watching a set on ebay...

http://www.ebay.com/itm/191500932350?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT