Cars of today may have the problem of back pressure if it fails to get rid of excess gases. Most vehicles that are straight from the factory don’t always have free flow exhaust system instead, it is only using small diameter piping than what the car needs exactly. If you take a look at the exhaust manifold, you’ll notice that the bends aren’t bent in mandrel manner, creating better airflow.
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. 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. 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 – connecting branches to catalyctic converter and to the muffler is the main function of head pipe. Normally, it has a straight path that doesn’t have much bends.
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. 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. Actually, many cars have second mufflers or sometimes 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 – this is the last part of the exhaust system and has piping from the vehicle’s muffler and all way back. Many of the aftermarket tailpipes that you can buy include nicely chromed tips that is either double or single tip. Most of the bends are found here because the piping needs to curve up and over the car’s rear axle. As a matter of fact, there are some suppliers who go extreme with their exhaust like putting lights on the tips.