Exhaust System: Description and Operation

Exhaust System Description (2.0L LHU)

Catalytic Converter





The catalytic converter (1) is an emission control device added to the engine exhaust system in order to reduce hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx) pollutants from the exhaust gas.

The catalytic converter is comprised of a ceramic monolith substrate, supported in insulation and housed within a sheet metal shell.

The substrate may be washcoated with 3 noble metals, Platinum (Pt), Palladium (Pd) and Rhodium (Rh). The catalyst in the converter is not serviceable.

Exhaust Front Pipe with 3 Way Catalytic Converter





The exhaust front pipe with 3 way catalytic converter (1) is mounted in series to the catalytic converter.

The 3 way catalytic converter is comprised of a ceramic monolith substrate, supported in insulation and housed within a sheet metal shell.

The substrate may be wash coated with 3 noble metals, Platium (Pt), Palladium (Pd) and Rhodium (Rh). The catalyst in the converter is not serviceable.

The flexpipe reduces the transmission of vibrations and oscillations from the engine transmission unit to the exhaust system.

Exhaust Muffler





The exhaust muffler (1) is to reduce broad band engine exhaust noise. It is comprised of a series of perforated tubes and baffles to break up the sound waves and reflect them.

It is made of stainless steel to protect the muffler from corrosion.

The exhaust muffler is mounted beneath the underbody in the transmission tunnel.

Exhaust Rear Muffler





The rear muffler (1) is to reduce broad band engine exhaust noise. It is comprised of a series of perforated tubes and baffles to break up the sound waves and reflect them.

It is made of stainless steel to protect the rear muffler from corrosion.

The rear muffler is mounted behind the rear suspension equalizer beam (watt linkage).

The exhaust gasses are discharged through each of the two tailpipes on the left and right.