OK so im almost done fixing my 88 CRX Si chasis and its time to think about an engine to swap in there. I was thinking of the JDM B16A but i kinda wanted to go with a USDM B18C1. I think my CRX is OBD 0. I was planning on doing an OBD 2 conversion so the B18C1 would work then getting a conversion harness to make it OBD 1. Now how hard is it to change the whole car from OBD 0 to OBD 2?