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.
As for naturally aspirated vehicles available today, it is best that you work first on its induction and exhaust prior to anything else. In the next paragraphs, you’re going to discover the different parts of an exhaust system.
Manifold/exhaust headers/branches – this is taking the gases from the cylinder of the car’s engine which combines it to 1 pipe that is interconnected to the head pipe which is found 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. 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 – it is converting dangerous chemicals similar to carbon monoxide, hydrocarbons as well as nitrogen to CO2 or carbon dioxide, water vapor, nitrogen and oxygen. A catalyctic converter is most instances coated using palladium and platinum and has beads/honeycomb. In return, this is making chemical reaction that converts the bad gases to good ones.
Muffler – deadening the loud sound produced by a car is the function of mufflers. 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. This is mostly done for aesthetics purposes only especially when you see the tips to be 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. 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. In fact, there are suppliers that even put lights onto the tips of their exhaust.