Ok, guys and gals.

I'm usually the first to scream "DO A SEARCH". But I have and can't find what I need.

The asbestos/ceramic/whatever o-ring gasket at the front of a cat-back exhaust on an N/A xFire. I fear that I damaged the one I was instructed to "save and re-use" in the installation instructions that were included with my MagnaFlow 16633. It goes in the 3 bolt flange at the inlet to the cat-back.

Can anyone help?