Functions of exhaust system:

1. The function of an exhaust manifold is to expel the exhaust gases from the combustion chamber of each cylinder out to the atmosphere through the exhaust pipe after combustion stroke is completed.

2. To keep back pressure minimum.

3. Reduce noise of exhaust gases during expelling in atmosphere.

4. Reduce the pressure and velocity of exhaust gases.

5. Incorporate the catalytic convertor system in tail pipe