3. Definition: Exhaust system carries away the gases created when the fuel and air are burned in the engine. These gases are harmful to humans and our life.
4. In The Past: Made from iron. Created a lot of noise. Harmful carbon and hydrocarbons.
5. Present: Made from stainless steel or aluminum. Less noisy. water stem and carbon dioxide.
7. How it works Exhaust manifold: It’s connect to the engine. Take all cylinders exhaust to one pipe. Made from steel, stainless steel or aluminum. Catalytic converter: This muffler changes harmful carbon and hydrocarbons to water stem and carbon dioxide.
8. Oxygen sensor: It’s measure how much oxygen in the exhaust. It’s connect to computer to control the correct mixture for fuel economy. Muffler: It’s work to reduce the noise of the exhaust process . Exhaust pipe: It’s work as connect all parts together and move the gas throw it .