yep we rally a genuine n1, and the other n1 in tassie is a rally car too..... it's the reason they were made. running 1.3 bar of boost with the pfc boost control kit.
R33 N1's do not have ball bearing turbos. they run a bigger than std bush bearing steel wheel turbos. The N1 engine is much more refind than the std one, we run ours to 8500rpm
ABS was a delete option, never seen one with that box ticked though.
there is no need to replace the r33 airbox, it breathes realy well, as it's got 2 air intakes.
you don't want to sell the kevlar diffuser cheap do you i broke ours last year.