The exhaust system, simple isn’t it. Not quite so. All we see are the metal pipes poking out of the rear of the vehicles. However, a car exhaust system is much more complex than meets the eye. A car exhaust system consists of three basic parts: the exhaust manifold, oxygen sensors, the catalytic converter and the resonator, muffler and tail pipe.
The exhaust manifold, or exhaust header collects the exhaust gases from the combustion process occurring in the engine block. Typically the exhaust manifold has four steel pipes that are interconnected at the base. At the base is found a collector that has a wider diameter than the steel pipes.
The catalytic converter is a defence mechanism protecting the environment from harmful engine emissions. The catalytic converter operates by converting harmful emissions to carbon dioxide through chemical processes.