So when is a wing legal in IT?

[Andy Bettencourt]

Just to add additional information on Greg's M-Technic example, to the best of my knowledge and research the MT model included a trunk lid lip spoiler, but not the M3 style wing.

I have never seen an MT with any type of spoiler. But to fit it into this thread, if it did come with one, whatever it's design, it would be legal in IT on a 325is.