Originally Posted by Brxce

I currently have a 6spd and need a new engine, but when you say the ecu needs to be swapped out and rewired I’m kind of confused. Is it not essentially “plug and play”? My current wiring harness can’t just plug into the new engine and be all set? A shop is doing all of the work, but one of the techs said it probably isn’t a problem with an engine from and auto going into a standard but did mention something about it. I guess while we’re on the lines of this, will a nismo motor be a direct swap to a non nismo car?