Removal Procedure

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Raise and support the vehicle.
Support the exhaust system.
Remove the exhaust pipe hanger insulator from the exhaust pipe hanger bracket and the exhaust pipe.

Fig 1: Remove Exhaust Pipe Hanger Insulator From The Exhaust Pipe Hanger Bracket
Courtesy of GENERAL MOTORS CORP.
Remove the exhaust pipe rear hanger insulators from the muffler rear and the hanger brackets.

Fig 2: Exhaust Pipe Rear Hanger Insulators
Courtesy of GENERAL MOTORS CORP.