Im not too sure if it will work I thought there was.two tipes of ecus for.s15s but I could be wrong any of your mates have s15 to just try it save you money if it doesn't workSaid that too him and he told me go talk to sumone who knows ? so should be no problem too swap it with any other spec r ecu from a jap s15?
I got confirmed by Jez from HDev that JDM ECUs don't have NATSJDM ecu's have different pinouts to the ADM. We also have the anti theft system on all S15, while I am not sure if the JDM ones did and of course the mapping is different for our crappy fuel.