Hello and thanks for donating
The catalytic converter is part of the exhaust system and requires welding experience and equipment to replace. Your vehicle may have a faulty oxygen sensor(s) that will also cause the smog to show up as faulty catalytic converter. They are also found on the exhaust system, but they just unscrew from exhaust and disconnect electrical connector to replace.
Friday, February 26th, 2010 AT 2:03 PM