Mazda Protg owners always want to have an excellent engine performance. That is the reason why they are giving a lot of attention to their engines. There are some things which can be done to secure better Mazda Protg engine performance without taking out a bank loan. Mazda Protg headers are one of the easiest bolt-on accessories you can use to boost an engine's performance. How do Mazda Protg headers work to improve engine performance?
If you have ever tried drinking a really think milkshake through a straw, you experience how hard it can be to pull that fluid through an opening that is to restrictive. The same thing also is true to your engines, they may be feeling the same way about incoming air. Exhaust system changes work pretty much the same way. If your engine is trying to force its spent gases out via an opening that is too small, it is wasting energy. Plus, if there is too much backpressure, some exhaust may remain inside the engine, meaning, there isn't as much room for fresh air and fuel to be burned, so you are making less power.
The idea behind a Mazda Protg header is to eliminate the manifold's back pressure. Instead of a common manifold which is shared by all cylinders, each cylinder gets its own exhaust pipe. Actually, people have misconceptions about "headers". A header is different from or is another type of exhaust manifold for it is constructed of separate equal-length tubes. They are designed to allow exhaust to flow more freely, or by "tuning" the exhaust to enhance performance during a specific engine rpm range.
But your Mazda Protg headers do more than just funnel spent gases out of the engine compartment less restrictively than manifolds. They draw spent gases from the combustion chamber by scavenging. Most headers are offered with a ceramic or other high-temperature coating.