Service life of the exhaust tract
The rate of exhaust gas corrosion decreases as exhaust gas temperature decreases. From this point of view, short-distance trips with stops and engine cooling are less harmful than long-term driving with a warm engine and constantly hot exhaust gases. However, when cooling, condensation forms in the mufflers, which, when mixed with combustion products, forms aggressive acids that corrode the metal of the exhaust tract from the inside.
Elements of the exhaust system of models with a catalytic converter (before 2000.)
1 - front pipe;
2 - oxygen sensor (front);
3 - oxygen sensor (rear);
4 - catalyst;
3 - heat shield;
6 - central muffler;
7 - rear muffler.
Regardless of the driving mode, moisture entering from the outside causes rust. Hitting rocks or driving over uneven surfaces also shortens the life of the exhaust system, as well as vibration caused by defective suspension rubber or poor engine mounting.
Exhaust system components for models with catalytic converter (since 2000)
1 - front pipe;
2 - oxygen sensor;
3 - heat shield;
4 - central muffler;
5 - rear muffler.
Elements of the exhaust system of models without a catalytic converter
1 - front pipe;
2 - central muffler;
3 - rear muffler.