Need O2 Sensor Help!!

Have a 2001 GC 6 cyl. Calif. emisions. Need to replace bank 2 sensor 2 o2 sensor. Anyone know how to remove this sensor?? Can't find room for a wrench. Not sure if it is a specialty tool or not. I dont think a socket will fit either. Anyone with any knowledge of this? Id greatly appreciate it.

There is a socket made specifically for replaceing the o2 sensors- looks like a regular large deep socket- except 1 sidewall of the socket is gone to allow for the pigtail wire.