The exhaust muffler pipe is a part of the engine exhaust system. The exhaust muffler pipe system mainly includes the exhaust manifold, exhaust pipe and muffler. Generally, the three calibration catalyst to control the emission of engine pollutants is also installed in the exhaust system.

The exhaust pipe generally includes the front exhaust pipe and the rear exhaust pipe. After fresh air and gasoline are mixed into the engine for combustion, high temperature and high pressure gases are generated to push the piston. When the gas energy is released, it is no longer valuable to the engine. These gases become exhaust gases and are discharged out of the engine.

After exhaust from the cylinder, the exhaust gas enters the exhaust manifold. After the exhaust manifold of each cylinder is collected, the exhaust gas is discharged through the exhaust pipe.