How Does Car Exhaust Affect Performance

How Does Car Exhaust Affect Performance

How does car exhaust affect performance

Have you ever wondered why your car engine creates such a fuss when you turn the car on? That’s basically your exhaust system calling out to you. Of the many reasons that affect the performance of your vehicle, the exhaust system stands as the primary reason.

The exhaust system is more than a couple of metal pipes working together to effectively eliminate the fume of engines.

When a viable and functional exhaust system in the engine is put to work, it helps free up more power, and more freed power means increased horsepower. The exhaust system allows the air to course through the engine and expels the toxic gases produced in the chamber from the vehicle. And so, the exhaust system acts as the respiratory system of the car.

With that being said, let’s move on to the critical part and find out how the exhaust system affects performance together.

How does Exhaust System Impact Vehicle’s Performance?

Your vehicle’s exhaust system is of paramount importance when it comes to its performance. That’s because it plays a vital role in the engine’s sustenance and working of the car. Certain aspects can either slightly or severely cause damage to your vehicle.

These include airflow, deterioration, cracks, influence on the car engine, manufacturing material and length, etc. detailed descriptions of these factors are as follows:

1. Air Flow

When it comes to car performance, almost every car manufacturer leaves some room for improvement in the vehicle. That is because after buying a car, people often tend to install additional parts to enhance the vehicles’ performance.

And when the term performance is being discussed, the airflow of the car cannot be ignored.

When the exhaust system of a car is being manufactured, two types of bends are included. These are called the Crush bend and the Mandrel bend. These bends cast a direct influence on how the air circulates.

The exhaust system manufactured by the factory incorporates the bend technique called ‘Crush bend’. It causes most of the pipe area to be crinkled, which results in the decline of exhaust gases. This reduction in the flow of air circulating through the exhaust pipe is where the problem begins.

This reduction can lead to the storage of exhaust fumes in the tube and cause the engine to work harder than needed, requiring more force and power. It can result in the downturn of the smooth and noiseless performance of your car.

However, the mandrel bend has to offer more than the one designed by the factory. The mandrel band bends the pipe without breaking or wrinkling it. It deploys less resistance and is smooth, in contrast to the crush bend.

It leads to better car performance with a systematized and efficient flow of air. Also, it is the ideal choice for smooth and seamless bending of thin pipes and tubes.

2. Deterioration Of The Exhaust System

One of the most common issues regarding the exhaust system is its disintegration. Once the exhaust begins to deteriorate, you will notice lesser fuel efficiency. This happens when the engine is forced to work harder to produce power than it should.

If you ever notice your fuel bar reducing at an unusual speed, then it’s better to get your vehicles’ exhaust system inspected. That’s because negligence in such a matter can cause you a dozen other problems with your car.

See also: How Do I Know If My Car Muffler Is Bad? [Top Signs]

3. Manufacturing Material And Length

How does Exhaust System Impact Vehicle's Performance?

If the vehicles’ performance is your primary concern, you should think about the exhaust system’s diameter and manufacturing material. The material plays a vital role in the sustenance and deterioration of the exhaust system.

In the exhaust systems, mild steel is mostly used as the making material, which comes with a drawback. Mild steel, being light-weight and of low quality, deteriorates faster than other materials would. And this significantly affects the performance of the vehicle.

Therefore, nowadays, stainless steel or aluminum are given preference in the manufacturing of exhaust system. Stainless steel offers uncompromising and robust performance, while aluminum offers extended lifespan and durability.

The other factor that significantly impacts the vehicle’s performance is its length or diameter. Most of the cars incorporate a small-scale pipe that does not utterly fulfill the purpose of the exhaust. And so, contemporary models include a slightly longer pipe, which offers a good setup and even better vehicle performance.

However, pipes of an extended length can also cause a noticeable decrease in the vehicles’ performance. Therefore, try to get an exhaust pipe, two three-inch longer than the standard size.

4. Leaking Pipes

Moving with a faulty exhaust system comes with another potential issue of damaging the surrounding objects. For instance, if, for some reason, the exhaust pipe sustains a crack, the harmful gases and fumes released from the combustion process may begin to leak.

The hot and toxic fumes splashing on other components attached to the car could lead to a potential fire. Or make them unable to work. However, the severity of the damage depends upon the depth and location of the crack.

Hence, it is always a good idea to get your car inspected every once in a while.


The car exhaust system is one of the reasons for your car running perfectly. Its maintenance constitutes to great benefits, and its negligence poses great threats. If your vehicle’s exhaust system is not taken care of, you will not only hear a lot of noises from the engine, but you will also notice a significant decline in the performance of the vehicle.

The reduction in the vehicle’s performance is often very minute. And very scarcely does it happen that problem in exhaust causes a car to abruptly stop in the middle of the road. Or get you flustered glances owing to the sounds your vehicle makes.

Therefore, the next time your car makes terrible sounds, you would know the roots of the problem. Also, getting a car checked out at least twice a month is not only healthy for your car but safe for you too. Happy reading!