O2 Sensors 2001 Volvo S80 T6
 

Hey All, I have to replace both oxygen sensors after Cat on my 2001 S80 T6, the code points to Sensor 2 Bank 2, Am I correct that this is after the Cat and has anyone purchased aftermarkets? This money pit is killing me! Volvo Durham want $298 each! Thanks for any advice!

Yes its the after cat. If you can live with the CEL being on you can leave it if you like. The post cat only monitors cat efficiency and doesnt play a role in the actual running of the motor.