Cars need to have a way of eliminating its excess gases or waste as not being able to do so can result to back pressure. Whether you believe it or not, most cars that are straight from the factory do not have free flow exhaust system instead, it uses small diameter piping which is bigger than what the car needs. If you will look at the exhaust manifold, you will see that its bends are not bent in mandrel manner to create better airflow.
In naturally aspirated vehicles, it is recommended to do the induction and exhaust first before working on anything else. As you read the next lines, you will be able to know other parts of exhaust systems and its uses.
Manifold/exhaust headers/branches – these take the gases from the engine’s cylinder and then, combine them to 1 pipe that’s interconnected to another pipe underneath the car. The best branches that are available in the market make use of mandrel bends while others are ceramics coated for better heat reduction. There are several flow test performed on it as well to guarantee that the air is exerted in the best manner possible.
Head pipe – the main function of a head pipe is connecting the branches to catalyctic converter and then to mufflers. Normally, it has a straight path that doesn’t have much bends.
Catalyctic converter – converting carbon monoxide, hydrocarbons as well as nitrogen, which are all dangerous chemicals to carbon dioxide, nitrogen, oxygen and water vapor is the purpose of catalyctic converter. As we discuss its function in greater detail, you will see that this has beads/honeycomb that is coated in palladium as well as platinum. This in return causes chemical reaction that is converting the bad gases to good ones.
Muffler – mufflers have one and one function only, and it’s to lower the loud sound made by the vehicle. It is able to do this by getting sound waves to bounce against each and therefore, cancelling them. A lot of cars actually have a second muffler or at times, even two parallel mufflers. There are often a couple of exhaust tailpipes that are connected to the final muffler. Usually, this is done for aesthetics only particularly when its tips are chromed.
Tailpipe – this basically consist of a piping from the muffler to the way back. Whether you believe it or not, majority of the aftermarket tailpipes you can purchase today have a beautifully chromed tip that’s either single or double tip. Most bends are located here as the piping has to curve up and over the vehicle’s rear axle. In fact, there are suppliers that even put lights onto the tips of their exhaust.