Exhaust Gasket

[Ryo]

Any one out there know the diameter of a cat to zorst gasket for my 96 '300 , mines blowing like a sod, and my local lexus dealer are bobbins , 3 days to order a gasket something wrong there, so i thought id see if i could get a size and get a generic one ,

tried uploading a pic but couldnt , its the gasket between the cat and the main exhaust pipe assembly

Cheers

blowing exhaust

[TigerFish]

The old one I have in front of me that goes between the down pipe and the cat is approx 80mm outside diameter and 68mm inside diameter. No idea if that is the same as the post-cat gasket though mate.

Edit: and it is about 5mm thick.