[Iflylow]

Those prices sound about right. Autozone has a loaner tool set that has an O2 sensor socket in it, they'll let you borrow it free. Just unplug, unscrew, screw in the new one, plug it in, and you're done. Do it with the exhaust cold. It may take a few drive cycles for the light to go out. It took mine about 3 trips, then it went out.