Hello dont own a evo but running a full evo setup on my lancer gts. I have a quiestion about ecu piggy backs. The ecu flash is useless for me since nobody has a proper definition file for it. So im looking into other options i found 3 that would work but need advice on which to go with.

aem fic claims to work with mivec

rrm piggy back the use this with their turbo kit for the lancers

i also own a apexi safc 2 would this work?

im concerned the modern ecu would overwrite any piggy back i attach.