What type of wastepaper should I use on my car?

Depending on the type of vehicle, there are different types of headers. 
Long headers are more expensive, difficult to install, and take up more space. However, due to their high sweeping effect, they are suitable for cars with tuning equipment and can perform very well at high engine speeds.
Short headers also produce a sweeping effect and are easy to install depending on the engine structure. Just as the long type was suitable for high engine speeds, the short type improves exhaust gas velocity at low speeds. And its positive effect can be seen on any factory engine without any changes to the engine.