headlights/front grill change - tail lights and rear door "trim" between tail lights changed as well, r33 style rb changed to neo 6 (note, the r33 style engine still had the r34 style ecu plug), i havent noticed any obvious interior changes, but the manual facelift ones got a dashboard without the cutout for auto transmission lights
i think there were a few more i had noticed, but i cant remember them right now