I think I might try to get more. Here is a set of Harley header pipes with the rears modified into one large tip. A friend of mine is making quite a few of these. So far 2 sets have held up with high temp flat black powder. This is #3 I think the large exit pipe helps them run cool. I would not try this on our headers though. Although I kinda would like to try it on a set of cast manifolds just for giggles. It is supposed to handle 1200 degrees+ Anyway, Hi Temp Flat Black on the pipes and heat shields. The engine end of the pipes have been left as is to allow room for the clamp.