Catalytic Converter And Intermediate Pipe Heat Shields: Installation

Position the heat shields in place.
NOTE: Install the circled rivets shown first to align the shield. The shields also overlap and share some common rivets.

Fig 1: Heat Shield Rivets
Courtesy of GENERAL MOTORS CORP.
Install heat shield rivets.
Install catalytic converter to intermediate pipe gasket.
Install three intermediate pipe to catalytic converter nuts.
Torque:

Intermediate Pipe-to-Converter Nuts: 25 N.m (19 ft-lbs)
Check exhaust system for leaks.