Well I've put about 13k on these reliably.
I think these can be run safely & reliably... My only recommendations are to get some better gaskets (snip stock ones with tin snipers?) and if you have the same fitment issue as I did with it touching the head, make a dent so it clears and put some sort of heat resistant material on the head in that area (not on the headers, they'll probably get brittle).
I may swap them out, but the only reason I'd do that is because of the fact that I want something ceramic coated... they do get HOT; however not to the point of melting things.
Really for the money they're pretty good.
I may be doing some ceramic coated S&S in the near future (or take these off, put the ding in and re-use... still undecided).
You'll see em at ASS for sure though.
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