Installation Procedure

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Install NEW exhaust gaskets (2).
1. Catalytic Converter Gasket (left) - Install NEW
2. Exhaust System Intermediate Gasket (right) - Install NEW
Exhaust Front Pipe (1) - Install
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CAUTION:
Fastener Caution

Engine Mount Brace Bolt (2) - Install and tighten 22 N.m (16 lb ft)
Exhaust Hanger Bracket Bolt (1) - Install and tighten [2x] 58 N.m (43 lb ft)
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Catalytic Converter Nut (1) @ Exhaust Muffler - Install and tighten [2x] 22 N.m (16 lb ft)
Courtesy of GENERAL MOTORS COMPANY

Catalytic Converter Nut (1) - Install and tighten [2x] 22 N.m (16 lb ft)
Propeller Shaft - Install - Propeller Shaft Replacement
Inspect the exhaust system for leaks.