Treblig's doughnut?

If you're not in a hurry here's one from china. Other wise you'll be paying more if you buy it in the US. There are many like this on ebay....just type in 2 1/2 inch exhaust flange and hit the search button.


2 1/2" 2.5" Pipe Pipes Flange Flat Oval Two Bolt Exhaust Flanges 2.5 Inch ID 1PC | eBay

FYI- I work during the day so I can only post after 6 pm.