Installation Procedure

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Install the exhaust manifold pipe gasket.
Install the exhaust system to the original position

Fig 1: Installing Exhaust Manifold Pipe
Courtesy of GENERAL MOTORS CORP.
Install the catalytic converter exhaust hangers.

Fig 2: Installing Catalytic Converter Exhaust Hangers
Courtesy of GENERAL MOTORS CORP.
Remove the support from the exhaust system.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the exhaust manifold pipe nuts to the exhaust manifold pipe studs.
Tighten

Tighten the nuts to 35 N.m (26 lb ft).
Inspect the exhaust system for leaks and underbody contact.
Lower the vehicle.