Three-way catalytic converter (TWC), removing

Fig 1: Removing/Installing Three-Way Catalytic Converter (TWC)

Courtesy of VOLVO CARS OF NORTH AMERICA.

Remove: 

• the heat shield from the car body
• the upper (front) heated oxygen sensor (HO2S)
• the nuts. Lift out the three-way catalytic converter (TWC)
• the gasket.