Components of the emissions and exhaust systems do a lot more than just reduce the engine sound level. They also carry engine exhaust gases safely from the engine to the rear of the vehicle, help the engine start and run smoothly, maintains engine performance and reduces harmful emissions.

These systems feature a muffler, a resonator and various exhaust pipes, two valves (PCV and EGR), an exhaust manifold, a gas cap, and an air pump, as well as oxygen sensors which provide the onboard computer with the necessary information to ensure proper fuel management. A defective exhaust system will allow poisonous carbon monoxide into your vehicle passenger compartment .

Another very important component of that system is the catalytic converter, which removes most of the pollutant gases from your exhaust system. It reduces fuel consumption and is a step towards a healthier environment – which is your responsibility as a vehicle owner.