CoffeeCar

I have an RC350 Fsport AWD and it recently thew a CEL with code P013C which is Oxygen Sensor Slow Response - Rich to Lean Bank 2 Sensor 2. From my research it seems to be this part number 8946553240 (https://parts.lexus.com/p/Lexus_2017...946553240.html) but can someone confirm if that is Bank 2 Sensor 2? It looks too far forward when looking under the car (they are in front of the cats?).

If that is the right part, where does the wire go inside the cabin? The only mod I have is an axleback exhaust that has been on for about half a year now.

Any help is appreciated TIA!