What is a potential consequence of an exhaust system malfunction?

An exhaust system malfunction can lead to a loss of power in an engine for several reasons. One primary function of the exhaust system is to effectively remove exhaust gases from the engine after combustion. If there is a blockage, leak, or failure in any part of the exhaust system, it can create back pressure. This back pressure increases the resistance against which the engine must work, resulting in less efficient expulsion of exhaust gases and consequently, a decrease in engine performance and power output.

Additionally, the exhaust system is also crucial for maintaining the correct operating temperature and pressure within the engine. If the exhaust system isn't functioning properly, it may affect these dynamics, further limiting the engine’s ability to generate power.