I've got the original old RS4 and I was wondering will this guy fit in there? I've heard good things about this motor and i could probably pick it up pretty cheap here.
http://cgi.ebay.com/OS-18-CV-R-engi...ryZ34062QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.com/OS-18-CV-R-engi...ryZ34062QQssPageNameZWDVWQQrdZ1QQcmdZViewItem