Installation Procedure

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Catalytic Converter

Courtesy of GENERAL MOTORS COMPANY

Install Catalytic Converter (2)
Install a NEW gasket. (3)

CAUTION:

Refer to Fastener Caution .

Install Catalytic Converter Nut (1) @Cylinder Head and tighten 46 N.m (34 lb ft)
If equipped, install the catalytic converter brace bracket. Catalytic Converter Brace Bracket Replacement (LGX)

Fig 2: Exhaust Muffler, Catalytic Converter & Mounting Components

Courtesy of GENERAL MOTORS COMPANY

Install a NEW gasket.(2)
Connect Exhaust Muffler (4) @Catalytic Converter (3)
Install Catalytic Converter Nut (1) and tighten 50 N.m (37 lb ft)

Fig 3: Torca Clamp At Attachment Point

Courtesy of GENERAL MOTORS COMPANY

Install a NEW clamp.(2)
Connect Exhaust Muffler (1) @Catalytic Converter (3)
Clamp (2) Tighten 50 N.m (37 lb ft)
Connect Heated Oxygen Sensor.Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (LGX)
Connect Heated Oxygen Sensor.Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (LGX)
Install Intake Manifold Cover.Intake Manifold Cover Replacement (LGX)
Start the engine and check for exhaust leaks.