What direct consequence does driving with a broken or poorly maintained exhaust system have?

Question

DentroTest · Accepted Answer

The fundamental functions of the exhaust system are to channel and expel the gases from combustion, reduce their toxicity by means of catalytic converters or particulate filters, and significantly attenuate engine noise through the silencer. If the exhaust pipe is broken, perforated or deteriorated, the sound waves from the engine's explosions escape unattenuated, which produces a marked increase in noise pollution. The option suggesting a decrease in polluting gases is wrong, because leaks upstream of the cleaning systems increase the emission of untreated toxic gases. Finally, lubrication depends exclusively on the engine's oil circuit and has no relation to the condition of the exhaust.

What direct consequence does driving with a broken or poorly maintained exhaust system have?

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