I haven't had a bit of trouble out of the gaskets that came with my ebay headers.
They're the flexible metal with something like carbon on the outside of it, about like pencil lead.
By no trouble I mean that there isn't any soot around the flange and I don't hear a puttering noise.

 

damn.
maybe that's why my headers used to leak. lol.

 

lol. lame. I especially hate it when it's my own fault. And that happens more than I'd care to admit. lol

 

Add me to that list...