Saab 9-5 Aero exhaust - cat back, factory or 2.5 inch

When I bought my 9-5 Aero estate it had full a 3 inch Abbott exhaust system.
The drone drove me mad.
I replaced cat back with an OEM exhaust and that is fine. The center section has rusted out now but the rear box is ok. I need to get new center section.

There seems to be only the 2.5 inch stainless exhaust available - is this going to have too much drone?

Jetex
https://jetex.co.uk/performance-exhausts/products

ferrata
https://www.ferrita.com/en/products/car/stainless-...

Or stock
Only options I can find are from Neo.
https://www.ebay.co.uk/itm/284876833552?mkevt=1&am...

that what i was thinking - cheapest way out
I would quite like a stainless OEM one but does not seem to exist