What will happen if the exhaust pipe is not tightly sealed?

Loose sealing of the exhaust pipe may have a series of adverse effects on the vehicle:

Noise increase: when the exhaust pipe is not tightly sealed, the exhaust gas in the exhaust system will leak at the interface, which will lead to increased vehicle noise, especially when driving at high speed.

Performance degradation: Poor sealing of exhaust pipe may lead to pressure drop of exhaust system, which will affect engine performance and fuel economy. Because the pressure drop will lead to poor exhaust emission and reduce the output power of the engine.

Environmental pollution: Exhaust gas leakage will lead to excessive exhaust gas emission, thus polluting the environment. Because the exhaust gas in the exhaust system contains many harmful substances, such as carbon monoxide, nitrogen oxides and hydrocarbons, these substances may cause harm to human health and the environment.

Damage to other parts of the vehicle: When the exhaust pipe is not tightly sealed, waste gas will leak at the interface, which may cause damage to other parts of the vehicle. For example, the fittings around the exhaust pipe may be corroded, leading to oil leakage and other problems.