TWC and Middle Pipe Removal Note

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Remove the aerodynamic under cover No. 2 (See AERODYNAMIC UNDER COVER NO. 2 REMOVAL/INSTALLATION .
Remove the TWC and the middle pipe as a single unit
Secure the middle pipe in a vice

Fig 1: Identifying TWC And Middle Pipe
Courtesy of MAZDA MOTORS CORP.
Remove the TWC from the middle pipe using the following procedure.

As shown in the figure, place alignment marks on the TWC and the middle pipe so that they can be re-assembled to their original position.

Fig 2: Identifying Alignment Mark And Nut On TWC
Courtesy of MAZDA MOTORS CORP.
Loosen the nut shown in the figure.

Fig 3: Identifying Alignment Mark And Nut On TWC
Courtesy of MAZDA MOTORS CORP.
As shown in the figure, spread the connection area of the TWC and the middle pipe outward using a flathead screwdriver.
Remove the TWC from the middle pipe in the direction of the arrow shown in the figure.

NOTE:

If the removal is difficult, the middle pipe can be removed easily by spraying penetrant lubricating spray on the connection area of the TWC and the middle pipe.

Fig 4: Identifying Alignment Mark And Nut On TWC

Courtesy of MAZDA MOTORS CORP.

Fig 5: Identifying Alignment Mark And Nut On TWC

Courtesy of MAZDA MOTORS CORP.