Its not just wiring it in, if it's a nissan one, that should be no worries as it may likely be a direct fit... You would need to correct your afm signal back to your ECU. Maybe a SAFC would do this? You understand that the AFM is not the airflow 'bottleneck' in the intake system, don't you.
Man your car looks so much like a 180sx! Sorry to hijack but every time i see it, it screams "I'M A 180!' Anyone else get that?
Not saying it in a bad way, it looks unique with the black top, and boot with white spoiler Good to be different...