I am now looking to replace "bank 2 Sensor 1" according to OBD code P0153. My problem is, I'm not sure where that is. I've done some research and some say replace both bank sensors, rather than just the bad one, and, I couldn't find good enough pictures to show exactly which they are. Do you have a simple answer or should I take it to a "certified" mechanic?

Is this the same Chad that sold me my SVO? If so thanks again. I appreciate all your honesty and help in getting a awesome father/son project. Will keep you updated with the build.