Under-Floor TWC Removal/Installation

Raise the vehicle on a lift.
Remove the exhaust pipe hanger (A).

Fig 1: Exhaust Pipe Hanger, Under-Floor TWC, Converter Covers, Gaskets And Self-Locking Nuts With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the under-floor TWC (B).
Remove the converter covers (C).
Install the parts in the reverse order of removal with new gaskets (D) and new self-locking nuts (E and F).