The exhaust system is designed to take gases from the cylinder head and vent them safely. The system has catalytic convertors to reduce emissions and mufflers to reduce noise.
The combusted gases leaves the head and enters the exhaust manifold. It then flows through the catalytic converter, then the muffler(s), and finally out the tailpipe
Exhaust systems transport the gases produced by the engine after combustion, which are released through the exhaust valves. The valves send the exhaust through a manifold and through the system.