Installation Procedure

If replacing the exhaust front pipe, install the exhaust pipe front hanger insulator bracket, if equipped.

Fig 1: Catalytic Converter Fasteners

Courtesy of GENERAL MOTORS COMPANY

CAUTION:

Install the catalytic converter exhaust front pipe fasteners (2) using a NEW gasket (3) and tighten to 25 N.m (18 lb ft).
Install the exhaust front pipe bracket fasteners (1) using and tighten to 22 N.m (16 lb ft).

Fig 2: Left And Right Drivetrain And Front Suspension Frame Supports

Courtesy of GENERAL MOTORS COMPANY

Install the fasteners (2) to the left and right drivetrain and front suspension frame supports (3) and tighten to 35 N.m (26 lb ft).
Tighten the front fastener (1) to 160 N.m (118 lb ft).

Fig 3: Exhaust Pipe Front Hanger Bracket Fastener

Courtesy of GENERAL MOTORS COMPANY

Install the exhaust pipe front hanger bracket fastener (1) and tighten to 22 N.m (16 lb ft).

Fig 4: Prop Shaft Bearing Bracket

Courtesy of GENERAL MOTORS COMPANY

If equipped with AWD, install the fasteners (1) to the prop shaft bearing bracket (2) and tighten to 22 N.m (16 lb ft).

Fig 5: Fasteners Securing Rear Muffler To Exhaust Front Pipe

Courtesy of GENERAL MOTORS COMPANY

Install the fasteners (1) securing the rear muffler (2) to the exhaust front pipe (4) using a NEW exhaust gasket (3). Tighten the fasteners to 18 N.m (13 lb ft).
Install the heated oxygen sensor, sensor 2. Refer to Heated Oxygen Sensor Replacement - Sensor 2 .
Lower the vehicle.
Start the engine and check for exhaust leaks.