Ok got it, so ill use the Y8 harness and swap it over to the B18 motor and extend the few plugs that are short and its a done deal then?? Sounds alot easier then i was thinking. :bashIISaiNtII said:no, you'll use the harness that's already in your car. most of the plugs are in near the same location, with the exception of the few mentioned above that will just need to be extended. other than that, it's nearly a plug&play affair.