yes u do have to change them... D=D, B=B, H+F=H+F get it?

but yea u do have to change them... if its going to be in a EG ur gonna need 93+ Integra axles... and yea u will need the ECU unless u just want to use a P28 * try to get a OBD1 swap but most likely ull get an OBD2, so yea u will need a dizzy, injectors, etc...

hope that helps a bit