based on the 2 NA ecu's ive seen its not possible.... the picture above confirms it.
Unigroup, MRC DYNO & unique autosports probably assume the same thing i did. i assumed that the NA ecu internals would be the same as GTT (most s13, s14, r32 ecu's run the same internals between NA and turbo, the R34 does not) this assumption landed me with two cars i could not remap.
Matt if im wrong let me know.... im starting to doubt my sanity