WTB: dump pipe gasket for s5

[serious14_guy]

mazda wants $130 for a dump pipe gasket, so i'm hoping someone here has one a lot cheaper or knows where i can get one.
my car smells bad.


EDIT: does anyone know what the flange is?

[FLEX]

Alex@injectmaz has copper ones made to suit, im using one on my car and have never had a problem with it. About 20% the cost of the mazda one too :)