Regarding Modifying The Exhaust System: Where To Start?

The exhaust system is like the heart of a car. It not only changes the appearance and sound of the vehicle, but more importantly, it is crucial to the performance of the vehicle. When many people get started with modification, they understand that the exhaust pipe is actually a connection of key parts with one or more pipes, which can be divided into three parts: the head section, the middle section and the tail section. So which part to start with has become a problem that troubles many car enthusiasts. Today we will answer this question for you.

First, let’s get to know each part of the exhaust system separately:

The head section is the starting part of the exhaust system and is often called the "Downpipe". It connects the engine's exhaust port, manifold and three-way catalytic converter, and the main function of the head section is to reduce exhaust back pressure and improve engine efficiency.

Usually the modification of the head section focuses on changes in material, shape and size. Often some high-performance head sections use lightweight materials, such as titanium alloy or high-strength aluminum alloy, to reduce weight and improve heat conduction efficiency. In addition, some modification brands will also provide straighter and shorter head section designs to reduce exhaust gas resistance, thereby increasing engine horsepower.

However, it should be noted that when modifying the head section, the exhaust temperature and pressure of the engine need to be considered. A shorter exhaust pipe has lower back pressure and is good at high rpm, while a slender exhaust pipe has high back pressure and is good at low rpm torque. If the head section is too short or too narrow, it may cause increased exhaust back pressure and reduce engine performance. Therefore, it is very important to choose a head section that is suitable for your vehicle and engine.

The middle section, as the name suggests, is the middle part of the exhaust system, usually referring to the muffler. The main function of the middle section is to reduce harmful substances in the exhaust gas and reduce noise.

Some high-performance mufflers use special materials and designs that can effectively reduce noise while maintaining exhaust gas flow efficiency. When modifying a muffler, the vehicle's sound and performance needs need to be considered. If a muffler is too strong or too weak, it can result in a disharmonious sound or reduced performance.

The tail section is the last part of the exhaust system and is often referred to as the "Tailpipe". It refers to the last part of the exhaust pipe, the tailpipe that directs exhaust gases from inside the vehicle to the outside atmosphere. Therefore, the main function of the tail section is to guide the exhaust gas to be safely discharged into the atmosphere.

Generally, the modification of the tail section is also achieved by changing the material, shape and size of the exhaust pipe. For example, use titanium alloy or high-strength aluminum alloy to improve heat conduction efficiency, or choose dual-out chamfered tail pipes to change horsepower, etc. However, you must choose a tailpipe that is suitable for the vehicle and engine. Otherwise, not only will you lose low-rev torque, you may not even be able to accumulate high-speed horsepower.

After knowing the composition of the exhaust pipe, we need to consider the key question - which part should we start to modify?

In fact, this still depends on your needs and budget. Here are some tips for you. If the exhaust pipe is based on road driving, you should choose a longer style, but if it is an exhaust pipe based on competition, then Shorter styles should be chosen.

In addition, the smoothness of the exhaust pipe is related to the design of the three-way catalytic converter in the front section, the thickness of the middle pipe diameter, and the size of the muffler. If you have a limited budget and want to improve the performance of the vehicle, then modification is your first choice. Exhaust manifold. If you just want to change the sound of your vehicle, then a modified tailpipe may be more suitable for you.

If you want to improve performance and sound at the same time, then modifying the entire exhaust system may be a better choice. In this case, you must choose a three-way catalytic converter with better performance, because it can reduce the pollution value of the exhaust gas before it is discharged from the engine. , the fuel supply ignition system and all aspects of air intake are precisely coordinated.

It should be noted that modifying the exhaust pipe is a complex project that requires professional skills and tools. If you do not have enough knowledge and experience, it is recommended to seek professional help from GRWA. We can provide more professional advice and services to ensure that your modification project goes smoothly. Finally, I hope we have the opportunity to enjoy the fun and sense of accomplishment brought by modifying the exhaust pipe together!