Installation Procedure

Fig 1: Catalytic Converter Exploded View Installation

Courtesy of GENERAL MOTORS COMPANY

Install a NEW gasket. (6) [3x]
Three-Way Catalytic Converter (10) - Install
CAUTION:
Refer to Fastener Caution .
Three-Way Catalytic Converter Nuts (16) - Tighten 57 N.m (42 lb ft) [2x]
Three-Way Catalytic Converter Bolts (15) - Tighten 48 N.m (35 lb ft) [2x]
Connect the heated oxygen sensor electrical connector.