There is no reason they wouldn't fit, as there is no difference to the size/shape of the wings or side-skirts, between the 8 and 8.5.
That said, I'm not a fan, I personally wouldn't fit them at all.
I'd look at getting some PPF for the vulnerable parts instead.
@mossy, was that rear bumper ever re-painted? That damage looks pretty bad, I don't think I've ever seen stone chip damage as bad as that in that area.