As I have said before, after the endurox I fully expected my pipe to look the same as yours but not a dent at all.
The Propower are definitely tuff units.
I had a thinner prototype on my bike whilst doing the endurox and the new one is a much better and more refined unit.
I fully expect there to be no probs at all with dents and being thicker than the prototype it should resist bending the pipe a little more also.
Cheers Mark
P.S Nothing at all wrong with the original either , just upgraded to red