The exhaust system is mounted beneath the car and consists of various parts (manifold, catalytic converter, center silencer, silencer) that can be replaced separately. The composition of the various exhaust parts depends on the make, model, engine capacity and type of engine. If an exhaust part is broken, then it is wise to replace it.
Important functions of exhausts are:
The exhaust system is subject to wear and tear, think of rain, temperature differences and snow and brine in the winter. That is why at the MOT test it is also checked whether the exhaust is gas-tight, whether all suspension points are still in order and with gasoline engines a four-gas measurement is done, with diesel engines a soot measurement.
For the life of your exhaust system it is important that the rubbers on which your exhaust is suspended are in good condition. If this is not the case, vibrations could occur, leading to metal fatigue, causing a breakage or cracking. The distance between the bottom of the car and the various components is also important. If this distance is too small, it will cause damage and resonances, and if it is too large, damage can easily occur at speed bumps and such.