i am thinking of fitting a final spec engine.
the issue that puts me off, is that although rare the nismo enignes are, 500ps and above is not really going to be sustainable in the long term.
nismo only offer R34 Turbos and Nismo ec, which are of no use to me.
so better to send the car to Midor Seibi or similar. for less money but more potential.
Nismo engines are great, but i would not wish to map/change it beyond what the current nismo spec is.