1993 Ford Probe help

Is it a v6 or straight 6? One exhaust manifold or two?

If its one exhaust it has two one before, and one after the catalytic convertor.

If it has two exhaust manifolds theres one before and after the convertor on that one also.

To get to the back ones, I would use a lift because crawling under the vehicle trying to change them arnt fun, and since the exhaust should be hot when attempting this, easy to burn yourself.