[jsgold]

You will need a special socket, as these have a wire on them. Can't use a regular socket on them. But, the socket is cheap to buy and I am pretty sure Advance will loan you one. (they have used tools they "loan" that you basically pay for then get your money back when returned)... the socket looks like a spark plug socket but has a slit in the the length of the socket. Usually these are between the passenger side header pipe and your catalytic converter.