Yes it is very easy. You need to go to your local parts store and buy a special socket so you can removeinstall oxygen sensor without damaging it. Here are instructions to replace. Let me know if you have questions. Thanks
TOOLS REQUIRED J 39194-B Oxygen Sensor WrenchREMOVAL PROCEDURE
INSTALLATION PROCEDURE IMPORTANT: A special anti-seize compound is used on the heated oxygen sensor (HO2S) threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an engine and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before the reinstallation.