QUOTE(blackhawkxx @ Aug 17 2009, 06:35 AM)

QUOTE
Exhaust gaskets should not ever need replacing unless you are taking off the headers.
I'm kind of thinking that he has had the header off maybe once.

In that case, you always replace them when you take off the headers. Once crushed, they never really work right after that. I know some would slather on a layer of gasket maker and reuse them, but they are cheap enough.