Why does the exhaust pipe sound as stuffy as a sports car?

The exhaust pipe sounds as dull as a sports car for the following reasons: 1. Exhaust pipe leaks: When the intake pipe leaks, when the vehicle speed increases, the exhaust speed also increases, and the vehicle will make a loud roar. 2. Throttle blockage: When the car accelerates, it will increase the engine load. At this time, it is necessary to increase the throttle opening and increase the amount of oil. If the throttle opening is not opened to the optimal position due to congestion, the engine's mixing ratio will be poor and noise will be generated when accelerating. 3. Engine lack of cylinder: Engine lack of cylinder mainly refers to the abnormal operation of one or more cylinders of the engine, which is generally characterized by insufficient vehicle power, violent vibration of the exhaust pipe and "sudden" or plop-plop roar of the engine.