Lift the vehicle, and support it with jackstands.

Remove the bolts (A), and self-locking nuts (B).

Lower the vehicle.

Remove the A/F sensor (Sensor 1).

Remove the secondary HO2S (Sensor 2).

Remove the EGR pipe.

Remove the cover (A).

Remove the TWC (B).

Remove the converter cover (C).

Install the parts in the reverse order of removal with new gaskets (D) and new self-locking nuts.