Exhaust headers are among the easiest bolt-on accessories that can help improve the performance of your car engine. Headers are designed to make it easier for the car engine to push exhaust gases out of the cylinders. Typically, a four-stroke car engine produces all of its power during the down stroke, and during this stroke, the gasoline in the cylinder burns and expands, thereby generating power. The three other strokes can be considered “necessary evils” that are needed to make the power stroke happen. And as these three other strokes consume power, they place a drain on the car engine.
During the exhaust stroke, there is a good way for the car engine to lose power and this is through “back pressure”. When the exhaust valve opens at the start of the exhaust stroke, the piston pushes out the exhaust gases from the cylinder. If there is resistance that the piston needs to push against in order to force the exhaust gases out, there is wastage of power. This pretty much describes what back pressure is and this is what exhaust headers are meant to prevent from happening. In other cases, two exhaust valves are utilized to help improve the flow through making the hole where exhaust gases travel through a bit larger.
The idea behind exhaust headers is to eliminate the back pressure of the manifold. These headers are installed in most car engines in an attempt to improve performance and as means to customize the car. Instead of having a common manifold that all the cylinders share, each cylinder has its own exhaust pipe and these pipes come together in a larger pipe known as the collector. These individual pipes are cut and bent to make each one of the them the same length as the others to guarantee that the exhaust gases in each cylinder arrive in the collector spaced out equally. In this way, back pressure is eliminated.
Another way to detail a car without having to spend too much money on it is through adding coilovers. Coilover is short for coil over spring strut and looks similar to a typical suspension system. It has an integrated shock absorber and is primarily used to lower the body of the car so it becomes closer to the ground, giving it an urban look, and better stability and handling.
If you are planning to customize your car and at the same time, make it perform better, try to consider adding exhaust headers and coilovers Audi into it.