does anyone know dimensions of exhaust seal?

[RJA]

They're available at NAPA and other auto distributors.  Although they all
have the size ID/OD, they come in slightly different shapes, some will seal
better than others.  I've got several around, depending on which aftermarket
exhaust I happen to be using.  They are also a pain to seal, you may want to
consider a new clamp and bolts too.

-- Rich A. - CT
   '83 Coupe GT
   '90 200q
   '93 S4


>I am looking to replace the doughnut shaped sealing washer between the
first
>exhaust section and the middle section (right around the transmission area)