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. Majority of the vehicles straight out the factory don’t come with a free flow exhaust system rather, it is using small diameter piping than what the vehicle actually needs. To create better airflow of the exhaust manifold, the bends don’t follow a mandrel manner bent.
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 are taking the gases from different cylinders and combining them into 1 pipe that is interconnected to another one underneath the car or called the head pipe. Best branches in the market are using mandrel bends and some even are coated in ceramics for improved heat reduction. Not only that, it is flow tested to make sure that it is flowing the air out efficiently.
Head pipe – the head pipe is designed in such way to connect the branches to the catalyctic converter all the way to the mufflers. It is normally has straight path without much bending.
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. A catalyctic converter is most instances coated using palladium and platinum and has beads/honeycomb. With this in the exhaust of the car, it is able to transfer the bad gases into good one.
Muffler – mufflers have one and one function only, and it’s to lower the loud sound made by the vehicle. The muffler does this by forcing the sound waves to bounce against each; this process cancels the noise. A lot of cars actually have a second muffler or at times, even two parallel mufflers. The final muffler has couple of exhaust tailpipes that are also connected to it. Mufflers with chromed tips don’t have much use because it is oftentimes just there for aesthetics.
Tailpipe – it’s the last part of an exhaust system and it consist of piping from muffler all 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. Due to the reason that the piping should curve up and over the axle on the rear, you’ll typically find most bends on this location. As a matter of fact, there are some suppliers who go extreme with their exhaust like putting lights on the tips.