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/InstallationRear Seat
Purpose, Function
The following two types of rear seats have been adopted.
6:4 split-type seat
4:2:4 split-type seat
The following functions have been adopted for the rear seat to protect passengers
during a collision or emergency braking.
...
Power Steering
Power Steering
• Power steering is only operable when the
engine is running. If the engine is off or if the power steering system is inoperable,
you can still steer, but it requires more physical effort.
If the steering feels stiffer than usual during normal driving or the steering
vibrate ...
Refrigerant Pressure Sensor Removal/Installation [Full Auto Air Conditioner]
1. Disconnect the negative battery cable..
2. Discharge the refrigerant..
3. Disconnect the refrigerant pressure sensor connector.
CAUTION:
If moisture or foreign material enters the refrigeration cycle, cooling ability
will be lowered and abnormal noise will occur. Always immediate ...