Removal (Left Side)

WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

Remove the exhaust crossover pipe. See CROSSOVER PIPE .
Remove the Connector Position Assurance (CPA) lock. Disconnect the oxygen sensor harness connector. See Fig 1. Remove the oxygen sensor.
Remove the exhaust manifold nuts. See Fig 2. Remove the left side catalytic converter and gasket.

Fig 1: Removing Oxygen Sensor (Left Side)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Removing Catalytic Converter & Gasket (Left Side)

Courtesy of GENERAL MOTORS CORP.