Converter, Catalytic: Installation: 5.7L

WARNING: This page is about a different car, the 2021 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

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NOTE:

If a new catalytic converter is installed in the vehicle, the Powertrain Control Module (PCM) mileage needs to be reset for proper operation of emission monitors and the health of the catalytic converter.

Position the catalytic converter onto the exhaust manifold flange and install the flange nuts (1) finger tight.
Connect the oxygen sensor wire harness connectors.

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Position the muffler and resonator assembly (1) onto the catalytic converters.
Tighten the exhaust manifold flange nuts to the proper torque specification. Refer to TORQUE SPECIFICATIONS .
Tighten the band clamps (2) to the proper torque specification. Refer to TORQUE SPECIFICATIONS .

Courtesy of CHRYSLER GROUP, LLC
Install the heat shield and retaining nuts (1). Tighten to the proper torque specification. Refer to TORQUE SPECIFICATIONS .
Remove the support and lower the vehicle.
Connect the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), connect the IBS connector.
Start the engine and check for exhaust leaks.