It is imperative for a car of any type to get rid of its waste or excess gases because restrictions of such will lead 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. 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 you can find in the market uses mandrel bends and some are coated in ceramics for an improved heat reduction. In addition to that, they are flow tested to ensure that it flows the air out in the best way.
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 – this converts the dangerous chemicals like carbon monoxide, hydrocarbons as well as nitrogen into oxygen, nitrogen, water vapor and CO2. A catalyctic converter is most instances coated using palladium and platinum and has beads/honeycomb. 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. Getting the sound waves to bounce back and forth to it is how it is able to do it. Actually, many cars have second mufflers or sometimes two parallel mufflers. The final muffler in most cases has a couple of exhaust tailpipes connected to it. This is mostly done for aesthetics purposes only especially when you see the tips to be chromed.
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.