Exhaust System Removal/Installation: 2WD: Notes

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
Remove in the order indicated in the table.
Remove the insulator. (See EXHAUST SYSTEM INSULATOR REMOVAL/INSTALLATION .)

Install in the reverse order of removal.

Step 1

Fig 1: TWC Components With Torque Specification (2WD)

Courtesy of MAZDA MOTORS CORP.

COMPONENT DESCRIPTION

1	Main silencer
2	Tunnel cover (See TUNNEL COVER INSTALLATION NOTE .)
3	Brace bar (See BRACE BAR INSTALLATION NOTE .)
4	Tunnel member (See TUNNEL MEMBER INSTALLATION NOTE .)
5	Connector
6	TWC component (See TWC COMPONENT REMOVAL NOTE .)
7	HO2S (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION .)
8	Exhaust shutter valve connector
9	TWC

Step 2

Fig 2: Exhaust System Components With Torque Specification (2WD)

Courtesy of MAZDA MOTORS CORP.

COMPONENT DESCRIPTION

1	A/F sensor (See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION .)
2	Clip
3	Insulator
4	Exhaust manifold insulator (See EXHAUST MANIFOLD INSULATOR REMOVAL NOTE .) (See EXHAUST MANIFOLD INSULATOR INSTALLATION NOTE .)
5	Exhaust manifold (WU-TWC) (See EXHAUST MANIFOLD REMOVAL NOTE .) (See EXHAUST MANIFOLD INSTALLATION NOTE .)
6	Exhaust manifold gasket