yeah sorry typo on my behalf;
GTR 65mm
Nismo 65mm (z32 internals inside GTR shell)
RB20 80mm
RB25 Series 1 80mm - 4 wire - green label (same as RB20)
RB25 Series 2 80mm - 3 wire - pink label
Z32 80mm (same as RB20/RB25 for the bolt pattern, afm adapter and turbo duct, new plug)
Q45 90mm (different bolt pattern, needs new afm adapter and turbo duct or reducer, new plug)