Ryan1979nz

I have a ca18det s13 silvia running a very old link g1 plus ecu. Wire in unit with hand controller. I would like to upgrade it to a more modern ecu. Not sure which type but it a street car So want to keep it as simple as possible. Atom? The g1 plus has a decent tune for the current setup. Can I get the tune out of my g1 and transfer it onto the new ecu? Can this be done pre install say by link if my ecu was sent down or is it fairly simple ie DIY possible? Will the install be a complete rewire or is there a conversion plug or something?