Do Headers Increase MPG?

Headers are one of the most complicated parts to install when it comes to getting the engine of your vehicle ready.

On the other hand, no matter whether you run a car or a truck, you always want to improve the gas mileage.  So, is there any connection between the headers and the MPG?

Do headers increase the MPG of your car? Here, we will go through how headers work and what can they help you with.

Also, if you want to improve the gas mileage, how can headers help you! We will discuss how to do headers increase MPG in other ways too! Let us check out how it works and then you are free to test them out!

Things to Keep in Mind Increase MPG of Headers

Yes, there are a lot of header companies that will tell you that adding new heavy-duty headers will improve the MPG. They might be true. But even if they are true, the improvement will be minimal. In most cases, it might not be noticeable.

If you want gains to the vehicles that have log-type cast iron exhaust manifold, a good quality header can be very helpful for you. In such a manifold, the large tube is bolted to the exhaust ports. This helps in gathering the exhaust gas. In the engine, it takes a small space.

If you plan to add a little more mileage, you can go for headers with a cat-back system. Besides adding new headers, there are other options to improve the gas mileage to a noticeable rate.

If you lessen the amount of time you are going to keep your beast on the road, you can improve the MPG. Also, changing the fuel to driving slow, there are other ways to boost the MPG and save your money.

Ways to Increase MPG on Headers

However, if you want to increase the MPG, you can settle for some other improvements too! Here, we will tell you how you can develop the gas mileage and make your vehicle run for a bit more time on the road!

Cold-Air Intake:

With the help of high-flow cold-air intake, you can easily improve the gas mileage. This is the first thing that professionals suggest for improving the MPG. When the air will get more oxygen, you will get better engine power and it will save a mile per gallon.


Another object that can improve the MPG of your vehicle is the tuner. Some call it a performance chip and yes, it works according to the name. All you need is the perfect fuel mixture balance and you will eventually get better mileage!

Suspension Kits:

Settle for the performance suspension kits and you are ready to add some MPG for sure! When you use a lightweight vehicle and add heavy OEM suspension kits, the car cannot expand a lot of power. As a result, you get to save fuel!

Do Headers Increase MPG & How Much MPG Improve?

Whenever it comes to headers, people get confused if these can provide you with higher MPG or not. In this case, all we have to say is, yes, if you settle for a quality header set, the MPG will surely increase.

However, the amount will not be too much to notice. It also will create a visible difference in the HP improvement. More or less, 10-20 or more horsepower will improve.

The reason why people install new headers is the improvement in power or horsepower. With the addition of a good-grade header, your truck can get added power and you will love driving it.

But if you are setting for the after-market performance muffler or exhaust system, you can expect engine efficiency.

It will increase the engine efficiency from 2% or 10% or more. Now, when you get the increased amount of efficiency, this efficiency can be used for the improvement of the fuel economy or the HP.

Now, this completely depends on you how you will use you! You can go at a high speed by increasing the horsepower or you can also settle for incredible fuel economy and save your wallet!

Do Performance Exhausts Increase MPG?

Yes, if you want to boost the fuel economy by 2 MPG or close, you can settle for new performance exhaust.

It won’t take much longer, all you need is an after-market performance muffler, and you are done! It will add more or less 2-12% MPG improvement. Also, it will improve HP.

What Increases MPG?

Apart from headers, there are other ways of increasing the MPG. Do not use the brake more often. When idle, don’t keep the engine light on. Select the motor oil that fits perfectly and is of high grade.

Check the tires and do not load your vehicle more than necessary. Cleaning out the trunk is vital too. All of these will help you to increase MPG.

Does a Loud Exhaust Use More Fuel?

A very common idea of the newbie along with the seasoned drivers is that louder exhaust uses more fuel. This idea is not correct.

Keep in mind that the type of exhaust is not connected with the use of fuel. When you use a car engine, it delivers power by making combustion.

As a result, there is a lot of noise. And for reducing the noise, you have to install an exhaust system. There is a muffler added there.

This will help in lessening the noise and keeping the voyage comfortable! This has no connection with the fuel at all!

Wrap Up

So, now you have learned do headers increase MPG and what sort of headers can help you out.

On the other hand, we have also mentioned what you must do if you do not see the headers improving the visible amount of MPG!

Go through the methods we have mentioned above and you will not be disappointed.

The basic work of the headers is to improve HP and if you get extra MPG, that’s a stroke of luck! Comment below about the headers that you find outstanding!

About Nurul Islam 157 Articles
I am Md Nurul Islam (Jewel), a Professional SEO expert, and a blogger. I am an automotive enthusiast also I started creating this website because I have always loved cars and bikes.