So quick question.
looking to kswap my ej9. Was going to get ep3 and take engine & box from that & gather whatever else was needed separate.

but I’ve spotted an already swapped em1, I’m wondering how similar is the em1 or civic si front end to my ej9? Or ek9?

will this already complete swap be basically all I need?

i know there’s difference with OBD2a/OBD2b

but I’m sure you guys know more!
it saves me a lot of money and time buying this already swapped car!