just been digging around on web :) Connectors between 02-05 models are the same, no matter if they are gx, wrx or sti, As you say there are more wires from sti which will be left unplugged causing diff and dccd light to stay on (which im not bothered about). rev limiter light should work no probs. only Thing im after really is more modern look. same Cluster i had in my first car- Mazda 323f :(