P0430 cat bank 2 check engine. New cat, straight pipe or clean with additive?

P0430 cat bank 2 check engine. New cat, straight pipe or clean with additive ?

My 2019 had that error a few weeks ago. I started using 93 octane fuel, and it hasn’t come up again since. It has 80k miles on it.

I can tell you that these engines (3.5EB) actually require just over 6 quarts of oil. They perform best with fresh spark plugs, but the O2 sensors are crucial—they need to be in good condition because everything is being calculated based on what the sensors detect. I had the same code myself.

I mean, use the proper octane gas for a while first…

But then, grab some SPD downpipes with turbo adapters. You won’t be disappointed.

It’s it tuned?

No, all stock