So, the plan is to swap my d16a6 from my 90 civic si into my friend's 93 cx hatch, obd0 motor in obd1 car. Also, I want a D15b vtec in my 90 civic si..I'm sure the information is somewhere on this site but I have had trouble getting an exact answer... My buddy knows how to drop my a6 into his obd1 hatch. BUT- I have questions about putting the obd1 d15b into my EF hatch SI. I want to use the same cable tranny, will it bolt right up and which clutch should I put in it since it's going out? Also, I'm a little confused on the OBD conversion...As far as I myself can gather, I will need to do some wiring. Question is, can I just drop the D15B into my EF si with existing harness or do I have to find an obd1 chassis harness? I know rywire has a vtec subharness. I just need a basic walkthru for putting a D to D swap obd1 into EF. Any help is appreciated, thanks!