Anyone have any real experience with these?
http://cgi.ebay.com/ebaymotors/Twin...016QQitemZ260145579799QQrdZ1QQsspagenameZWDVW
http://cgi.ebay.com/ebaymotors/Turb...017QQitemZ270151671868QQrdZ1QQsspagenameZWDVW
http://cgi.ebay.com/ebaymotors/Twin...016QQitemZ260145579799QQrdZ1QQsspagenameZWDVW
http://cgi.ebay.com/ebaymotors/Turb...017QQitemZ270151671868QQrdZ1QQsspagenameZWDVW