Currently the S8 does NOT support cars with more than 4 cylinders.
However, I plan to do a V8 version and will probally include V6 too.
I cannot give an exact date for this at this point in time (probally around Jan next year).

I do NOT have the facility to read EEC4 maps out but I do have several standard
tune base maps for various configurations of injectors/turbo/engine type.