P0430 Failed Cat - Confirmed?

[Vtx531]

History for those who haven’t seen my other posts: Car had overheating problem when I bought it which I fixed with a new water pump. Also, had check engine light with lean condition codes which was fixed with a MAF sensor and also secondary issue of the AOS boot having a massive vacuum leak.

Now everything is running great but getting a P0430 code for bank 2 cat. Any idea what exactly might have ruined this? I didn’t think lean running would do this. The AOS was replaced by previous owner, maybe they waited too long to replace it?

Does the Boxster have some kind of weakness with these cats? I see a lot of posts about cat failure. I have a Jeep Wrangler that is about the same age and more miles and the cat is looking perfect according to O2 signal is smooth as could be.

Looks to me like my bank 2 cat is shot and the bank 1 cat is not much better...