Wondering if the N2 N3 head unit work with a N1 brain.

thanks

Yes.

yes im running the n1 software in my n3 because the mapping is more accurate for somereason where i live with the n1 software. the catch is that if you ever put the n2 or n3 disk in you cant go back to the n1 software or so ive heard (but its from someone who installs them for a living.)