I'm hoping someone can help me work out the gasket I need for the Airsal cylinder. Or if everyone is just running a bead of coper coat.
The SCR chamber has a 28mm opening at the end of the manifold. And the Airsal cylinder exhaust opening is 35mm at the widest point. And 28mm at the inside of the taper. It looks like it should have a cone style crush gasket. But I cant find anything close to the measurements.

