No, headers do not replace catalytic converters, but they can improve fuel economy and emissions. Actually, headers and converters both play an important role in automotive maintenance. When one fails, it can lead to serious problems down the road such as poor fuel economy or even engine failure.
I noticed that header replacement is a common repair that mechanics perform on cars. A header is essentially a piece of metal that houses the engine. Besides, it helps to increase efficiency by routing cool air around it.
By using header-style exhaust systems on my car, I can lessen the amount of air that is forced into the engine. Actually, it will result in a decrease in fuel consumption and emissions.

What Do Upgraded Headers Do?
They can help to prevent emissions by taking the excess polluting gases and turning them into less harmful nitrous oxides (NOx). The aim of headers is to make it facile for the engine to push exhaust gases out of the cylinders. In this way, it boosts the engine’s performance.
How Much HP Gain with Headers?
With headers, I can expect to see a gain of anywhere from 2-6 HP. It is based on the installation size and lifts height, as well as the type of header that I choose. Additionally, headers also improve acceleration and braking performance.
But, I must be aware of potential safety hazards when installing header pipes. In this case, I should take professional support. Thus, I may get the right type of header for my car and tune it properly according to manufacturer specifications.
Do Headers Make A Car Louder?
No, headers will not make it louder. Actually, the headers are designed to reduce noise and turbulence by increasing airflow over the vehicle’s engine and exhaust system. Rather, they can rally the sound quality of my car.
Actually, headers tend to increase performance by enhancing airflow and lowering drag. It makes the engine run more smoothly and achieve higher speeds. But, I have not observed any issue with making the car louder.
Read More: Will Removing Catalytic Converter Make My Car Louder?
Conclusion
Finally, all evidence pointed out that headers are an excellent way to boost both fuel efficiency and performance. But, in any manner, it cannot replace the cats of my car. My observation gets a stronghold when I found the majority of experts’ opinion is similar.
Read Also:
- Bad Catalytic Converter Cause a Lean Condition?
- Way to Remove Catalytic Converter Bolts
- Hollow Out Catalytic Converter. Is It Legal? How to Hollow Out?