Catalytic converter gasket - use ring or flat type?

[avguy]

The ring alone will work fine. I don't think using 2 gaskets would ever be a good idea (for anything).

[aydinbirk]

I just saw a thread where the factory exhaust was removed and in the pictures is both a flat gasket and a crush ring. Guess I'll just wait until we get a weekend in Connecticut where it doesn't rain and find out. I'll let everyone know what I find.