lmao! dude go buy the damn o2 socket, you can't cut o2 wires and re connect them. Any extra resistance to an o2 wire screws up the reading to the ecu. It's cheaper to buy the tool trust me. If the above doesn't work get a propane torch and heat the bottom of the bung until it warms up( don't do this if there's liguid wrench all over it will catch fire, clean it off first) once it's hot use the o2 socket. it should come right out. Don't try a open end wrench you'll **** it up