Civic EG

so im thinking of trading my coupe for a da what all will swap from it to eg8???!! also would i need a new harness to swap over the engine or will the one that come with the da hook up????

depending what year the DA it'll be less stuff to convert like Dizzy and stuff.

but you'll need to get 94 integra mounts,
hydro trans
LS harness from a 94-95
if you are getting it with the half shaft just make sure you get the right axles (90-93 shaft with 90-93 axles and 94-01 axles with 94-01 half shaft)
obd1 p75
shift linkage if the 90-93 doesnt work ( Idont remember if they do i know the 99-00 si shift linkage will work as well as 94-01 integra)
i would go ahead and get the 94+ LS intake manifold too looks cleaner

Does the Integra have an engine in currently? And what year is it?

What engine would you be trying to swap into the car?

if it has the stock engine, when you remove it you'll wanna keep the electronics off it (if its OBD0 - 90-91), the engine mount bracket (driver side), you'll need to reuse the engine mounts, their brackets, the cable transmission, its clutch (if its 90-91, 94+ use the same style clutch and are interchangeable).

you'll reuse the integra engine harness. Especially if its 90-91. you may be able to use the harness from the civic in the integra if its a 92-93, but im not 100% sure.