Purpose, Function
By lengthening the exhaust passage, the transmission of exhaust pressure waves to other cylinders can be delayed, and the amount of gas exhausted from a cylinder and forced back inside the combustion chamber is reduced By reducing the residual gas, the temperature inside the combustion chamber is reduced and the occurrence of knocking even at a high compression ratio is inhibited.
Construction
The exhaust manifold is installed to the rear of the engine. In addition, the catalytic converter (WU-TWC) is integrated (WU-TWC).

When the No.1 cylinder is at the intake stroke, the No.3 cylinder is at the exhaust stroke. By inducing the high temperature gas exhausted from the No.3 cylinder into the No.1 cylinder, the high temperature gas in the No.1 cylinder remains. If the amount of residual gas is high, the temperature in the combustion chamber rises and knocking can easily occur. With the 4-2-1 exhaust system, the transmission of exhaust pressure waves between each cylinder is delayed by the long exhaust pipes.

Exhaust System Removal/InstallationAir Intake Actuator [Manual Air Conditioner]
Purpose
The air intake actuator moves the air intake door in the blower unit to switch
the air intake port.
Function
The air intake actuator drives the motor based on the signal from the climate
control unit and moves the air intake door to the FRESH or REC position.
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Parking Brake Lever Removal/Installation
1. Remove the front console box..
2. Remove the shift lever knob. (MTX).
3. Remove the shift panel..
4. Remove the upper panel..
5. Remove in the order indicated in the table.
6. Install in the reverse order of removal.
7. After installation, inspect the parking brake lever stroke..
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Quick Release (Fuel System) Connector
Purpose, Function
Serviceability has been improved by the easy disconnection/connection.
Construction
The following types of the quick release connectors are used.
U.S.A. and CANADA
Except U.S.A. and CANADA
Type A
An SST is not used with this type.
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