Installation Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

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Front Axle Propeller Shaft Heat Shield (3) - Install

CAUTION:

Refer to Fastener Caution .

Front Axle Propeller Shaft Heat Shield Bolt (1) - Install and tighten [2x] - Fastener Specifications
Front Axle Propeller Shaft Heat Shield Stud (2) - Install and tighten - Fastener Specifications
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Exhaust Pipe Clamp (1) - Install NEW
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Catalytic Converter Gasket (2) - Install NEW
Warm Up Three-Way Catalytic Converter (1) - Install
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Catalytic Converter Brace Bolt (1) - Install and tighten - Fastener Specifications
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Catalytic Converter Brace Bolt (1) - Install and tighten - Fastener Specifications
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NOTE:
Use hand tools only when tightening the exhaust pipe clamp.

Exhaust Pipe Clamp (1) - Tighten - Fastener Specifications
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Catalytic Converter Gasket (2) - Install NEW
Exhaust Muffler (1) - Install
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{ If equipped } Front Crossmember Brace (2) - Install
{ If equipped } Front Crossmember Brace Nut (1) - Install and tighten [4x] - Fastener Specifications
Front Crossmember Brace Nut (1) - Install and tighten [4x] - Fastener Specifications
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Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Right Side (3) - Install
Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Right Side (2) - Install
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Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Left Side (3) - Install
Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Left Side (2) - Install
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Catalytic Converter Nut (1) - Install and tighten [2x] - Fastener Specifications
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Floor Panel Reinforcement (2) - Install
Floor Panel Number 4 Cross Bar Reinforcement Bolt (1) - Install and tighten [6x] - Fastener Specifications
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NOTE:
A special anti-seize compound is used on the heated oxygen sensor threads. The compound consists of liquid graphite and glass beads. The graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service sensors will have the compound already applied to the threads. IF a sensor is removed and is to be reinstalled, the threads MUST have an anti-seize compound applied before installation. Adhesives, Fluids, Lubricants, and Sealers

CAUTION:
Refer to Component Fastener Tightening Caution .

Using the EN-6179 Heated Oxygen Sensor Remover/Installer, install the heated oxygen sensor (1). Fastener Specifications
Connect the electrical connector.
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Catalytic Converter Heat Shield (1) - Install
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Catalytic Converter Heat Shield Nut (2) - Install and tighten - Fastener Specifications
Catalytic Converter Heat Shield Bolt (1) - Install and tighten [2x] - Fastener Specifications
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Turbocharger Heat Shield (1) - Install
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Turbocharger Heat Shield Bolt (1) - Install [3x] - Fastener Specifications
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NOTE:
A special anti-seize compound is used on the heated oxygen sensor threads. The compound consists of liquid graphite and glass beads. The graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service sensors will have the compound already applied to the threads. IF a sensor is removed and is to be reinstalled, the threads MUST have an anti-seize compound applied before installation. Adhesives, Fluids, Lubricants, and Sealers

Using the EN-6179 Heated Oxygen Sensor Remover/Installer, install the heated oxygen sensor (1). Fastener Specifications
Connect the electrical connector.
Inspect the exhaust system for leaks.
Remove the support and lower the vehicle.