There isnt really anything that stands out to me from having mapped a few YB's that is greatly different to any other engine Ive mapped TBH, its just a totally run of the mill 4 stroke turbo really.

Although the YB doesnt take as much ignition for the same compression as an RB generally from what I hear (not mapped an RB myself), but if he is a decent tuner he will work that out without needing telling anyway.