Engine Management, boost controller, 3" exhaust, with dump/front pipe and a hi-flow cat, FMIC, injectors, Pod Filter and drop in cams will get you a pretty tuff R34 Taxi...
If you can mate, get a manual... I've got a turbo, manual taxi and after six months I haven't looked back!
http://www.skylinesaustralia.com/forums/Fi...ax-t200799.html