Cars of today may have the problem of back pressure if it fails to get rid of excess gases. 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. To create better airflow of the exhaust manifold, the bends don’t follow a mandrel manner bent.
Say for example that you got a naturally aspirated vehicle, it is necessary that before you work on any modifications, you should work first on the induction and exhaust. You will learn about the various parts of exhaust system in the next lines.
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. The best branches that are available in the market make use of mandrel bends while others are ceramics coated for better heat reduction. In addition to that, they are flow tested to ensure that it flows the air out in the best way.
Head pipe – connecting branches to catalyctic converter and to the muffler is the main function of head pipe. It is normally has straight path without much bending.
Catalyctic converter – it is converting dangerous chemicals similar to carbon monoxide, hydrocarbons as well as nitrogen to CO2 or carbon dioxide, water vapor, nitrogen and oxygen. Digging deeper to what a catalyctic converter is, you’ll see that it compose of beads/honeycomb coated in palladium and platinum. This in return causes chemical reaction that is converting the bad gases to good ones.
Muffler – the job of the muffler is deadening the loud sound created by the vehicle. The muffler does this by forcing the sound waves to bounce against each; this process cancels the noise. If you will look closely other vehicles, it has a second muffler or two parallel mufflers even. 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 – this is the last part of the exhaust system and has piping from the vehicle’s muffler and all way back. Aftermarket tailpipes that you’ll find in automotive shops have a very attractive chromed 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.