Well, I haven't seen a real turbo S so I cannot really compare or judge the accuracy of the D9 wing. The uprights look like the "real" ones from what I can see by looking at pics. The blade is supposedly the version 2 style with an extra lip but having never seen one I don't know if this is true or not.
I was considering getting the wing from AIR but since getting their front splitter, and guessing that the wing and splitter is of similar quality, I chose the D9 piece instead (the version 2 style appealed to me as well since it is much less common). I cannot say anything about the function of the AIR stuff but the build quality is imo more suited for a race car than a pristine sunday driver (my car being somewhere in between).
The D9 unit is very well put together and very light without feeling like something that should be handled with care. The only things that needed attention before paint was the uprights and we're talking a little filler where the parts have been put together and some final wet sanding. I used less than 20 grams of filler on two uprights.
