What's the 2005 Lexus es330 o2 sensor location?

There are four 02 sensors on a 2005 Lexus ES330. The Bank 1 Sensor 1 location is on the front header assembly just before the downpipe connection. The Bank 2 Sensor 1 location is on the top of the rear header where the first and second outlets come together. The Bank 1 Sensor 2 location is found on the Y-pipe about half way between the catalytic converter and the headers. The last location is Bank 1 Sensor 3 which is found just after the catalytic converter facing the passenger side of the vehicle. Those last two must be accessed from underneath the vehicle. You will need a special 02 sensor socket if You want to remove the sensors without destroying them.