What is the part number of the stock exhaust gasket that goes between the CAT and the downpipe? My is busted and all the auot parts store shows a different part than the one I have. It is known as the Donnut gasket.

 

anyone?

 

Try Carland. I dont know if their part numbers are universal but you can at least order it from there. I was just looking at it last night for my car.
http://www.acuraautomotiveparts.org