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EXHAUST SYSTEM REMOVAL/INSTALLATION [L3 Turbo]

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  Warning

  • A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.

1. Remove the negative battery cable.

2. Remove in the order indicated in the table.

3. Install in the reverse order of removal.

.

1 | Main silencer
2 | Middle pipe (See Middle Pipe Installation Note.) (See Middle Pipe and Main Silencer Installation Note.)
3 | Seal ring (TWC side) (See Seal Ring Removal Note.) (See Seal Ring (TWC Side) Installation Note.)
4 | TWC
5 | HO2S (See A/F Sensor, HO2S Removal Note.)
6 | Front pipe (See Front Pipe Installation Note.)
7 | Seal ring (WU-TWC side) (See Seal Ring Removal Note.) (See Seal Ring (WU-TWC Side) Installation Note.)
8 | Insulator (See Insulator Removal Note.)
9 | Exhaust manifold insulator (Upper)
10 | Exhaust manifold insulator (Lower)
11 | A/F sensor (See A/F Sensor, HO2S Removal Note.)
12 | WU-TWC (See WU-TWC Removal Note.) (See WU-TWC Installation Note.)
13 | Exhaust manifold (See Exhaust Manifold Installation Note.)

## Seal Ring Removal Note

1. Remove the seal ring using a flathead screwdriver being careful not to damage the pipe.

## A/F Sensor, HO2S Removal Note

1. Remove the insulator (WU-TWC top side). (A/F sensor)

2. Remove the battery and battery tray. (See BATTERY REMOVAL/INSTALLATION [L8, LF, L3, L3 Turbo].)

3. Remove the A/F sensor, HO2S using the SST before removing the exhaust manifold.

## Insulator Removal Note

1. Remove the charge air cooler and the charge air cooler bracket. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION [L3 Turbo].)

  Caution

  • When removing the cowl, a part or tool may hit the edge of the windshield and could damage it. Protect the windshield by covering it with a clean rag to prevent damage to the windshield.

2. Remove the cowl grille. (See COWL GRILLE REMOVAL/INSTALLATION.)

3. Remove the insulators.

## WU-TWC Removal Note

1. Set the generator out of the way.

2. Disconnect the vacuum hose (Master cylinder side).

3. Remove the WU-TWC.

## Exhaust Manifold Installation Note

1. Tighten the exhaust manifold installation nuts in the order shown.

Tightening torque

  43-64 N·m {4.4-6.5 kgf·m, 32-47 ft·lbf}

## WU-TWC Installation Note

1. Temporarily tighten No.1 shown in the figure.

2. Temporarily tighten No.2 shown in the figure.

3. Temporarily tighten No.3 shown in the figure.

4. Completely tighten No.1 shown in the figure.

Tightening torque

  38-51 N·m {3.9-5.2 kgf·m, 29-37 ft·lbf}

5. Completely tighten No.2 shown in the figure.

Tightening torque

  38-51 N·m {3.9-5.2 kgf·m, 29-37 ft·lbf}

6. Completely tighten No.3 shown in the figure.

Tightening torque

  38-51 N·m {3.9-5.2 kgf·m, 29-37 ft·lbf}

## Seal Ring (WU-TWC Side) Installation Note

  Caution

  • If installation is performed without using the SST, the seal ring will be damaged and deformed, resulting in an incorrect installation. Always use the SST to install the seal ring.

1. Temporarily install the seal ring to the pipe so that the seal ring is even with the flange.

2. Install the SST to the seal ring so that the SST is even with the flange.

3. Press in the seal ring by tapping the SST using a plastic hammer until the seal ring contacts the flange.

## Front Pipe Installation Note

1. Spray carbon remover (TB6601 or equivalent) on the flared section of the exhaust pipe.

2. Remove the carbon adhering to the flared section shown in the figure using a nylon brush or sandpaper (No. 400 or equivalent).

## Seal Ring (TWC Side) Installation Note

  Caution

  • If installation is performed without using the SST, the seal ring will be damaged and deformed, resulting in an incorrect installation. Always use the SST to install the seal ring.

1. Temporarily install the seal ring to the pipe so that the seal ring is even with the flange.

2. Install the SST to the seal ring so that the SST is even with the flange.

3. Press in the seal ring by tapping the SST using a plastic hammer until the seal ring contacts the flange.

## Middle Pipe Installation Note

1. Spray carbon remover (TB6601 or equivalent) on the flared section of the exhaust pipe.

2. Remove the carbon adhering to the flared section shown in the figure using a nylon brush or sandpaper (No. 400 or equivalent).

## Middle Pipe and Main Silencer Installation Note

  Note

  • If any the following parts are removed, loosen all the nuts installed between these parts and perform the following procedure: catalytic converter, middle pipe, main silencer.

1. Set the middle pipe mount, and temporarily tighten to the catalytic converter.

2. Set the left and right main silencer mounts, and temporarily tighten to the middle pipe.

3. Completely tighten the installation nuts between the catalytic converter and middle pipe.

Tightening torque

  43-60 N·m {4.4-6.1 kgf·m, 32-44 ft·lbf}

4. Completely tighten the installation nuts between main silencer and middle pipe in the order of left side, then right side.

Tightening torque

  38-51 N·m {3.9-5.2 kgf·m, 29-37 ft·lbf}