[ref]jock156[/ref], I am only seeing this now!
Thanks for going to the effort of making an actual thread for this, unfortunately it is not the "template" I was looking for.
(I was asking after the paper template needed to show you what portion of the rear bumper to remove, and where to drill the mounting holes, if mounting the carbon aero diffuser)
I do however think your rear bumper looks amazing, so if I end up shelving the diffuser idea, I may come back to you!