All I can find on the latest version, the RX-7 RR5, is on Japanese websites. It appears to have modified airvents:
http://www.naps-jp.com/php/y-004.php?id=0000310480
http://web39.cocolog-nifty.com/doc/2...i_rx7_rr5.html
Sorry I can't help more at the moment.
DaveB.