Best way is to get yourself some Cusco Rear Upper Control Arms. They cost about $360 but they are badass and you can adjuste your camber setting for the rear.
It just so happens that I might sell mine off my car though. Let me know if your interested <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'> hehe