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What Happens if you Replace the Exhaust Resonator with a Pipe: Should you Do It?

Jan, 2018
What Happens if you Replace the Exhaust Resonator with a Pipe

Because of the high cost of visiting a local mechanic for basic car repairs, a lot of people consider doing things on their own. After all, given the numerous resources that are available online, a lot of DIY tasks are now easy-peasy. Among others, one thing that you might consider doing on your own is replacing your exhaust resonator.

When replacing a resonator, you might consider using a pipe instead, especially because it can end up being cheaper. But, is this recommended? Will it cause danger to your car? Will it deliver a negative impact on its performance? Read the rest of this post and learn what happens if you replace an exhaust resonator with a pipe.

What is an Exhaust Resonator?

Before anything else, let me first provide you with a primer on the functions of an exhaust resonator. Especially for those who do not have extensive knowledge of cars, it is easy to have it confused with other parts of the car, such as mufflers and catalytic converters.

In most cases, an exhaust resonator is made from a hollow steel cylindrical tube. It is not the same with a muffler. Rather, it is a part of the muffler, but not everyone uses a resonator as a component of the latter. It is a chamber that has the main function of reducing the noise that is produced by the engine. Performing like an echo chamber, it minimizes sound for a better driving experience.

More than just the reduction of noise, an exhaust resonator also improves the overall performance of the engine. You will end up having a smoother driving experience since the car can produce a higher horsepower in the absence of having to use too much fuel. In a nutshell, it also improves efficiency.

What Happens when you Replace the Exhaust Resonator with a Pipe?

Here is a short video that answers this question:

As you can see from the video above, yes, you can definitely consider a pipe as a replacement for an exhaust resonator. Nonetheless, just because you can do so, it does not mean that you can do it. Personally, using a pipe is one thing that I do not advocate as well. It can be cheaper and more convenient, but the cons can outweigh the pros.

Aside from muffling sound, the main function of the exhaust resonator is to create back pressure to improve the performance of your car’s engine. When you take out the exhaust resonator and replace it with a pipe, the back pressure can be affected. It will reduce the efficiency of your car and you might end up consuming more fuel while also hearing a louder noise.

Why is back pressure important? As it has been discussed in the short video clip above, this makes sure that the exhaust gases will come out of the chamber at the right rate. Consequently, this leads to achieving peak performance and saving fuel. Again, this explains why you should never use a pipe as a replacement for your exhaust resonator.

Why You Should Replace an Exhaust Resonator

The best reason to replace your exhaust resonator is to optimize the performance of your engine or your car in general. As noted above, it helps in the achievement of peak performance. More so, it is also essential in terms of fuel efficiency. If you want to save money in the long run, consider replacing the exhaust resonator that you currently have.

If you are wondering about when the exhaust resonator should be replaced, one thing that you should do is to perform a quick visual inspection. If it is rusted, dented, or damaged in any way, this is obviously the sign that it is seeking a replacement. If you notice that the engine is roaring too loud or if there is too much combustion, these can also be signs.

What is the Best Replacement for an Exhaust Resonator?

Replacement for an Exhaust Resonator

Via https://www.youtube.com/watch?v=7UwTQs4v7lw

It has been pointed out that a pipe should not be a replacement for an exhaust resonator, although some people use it. That being said, the best replacement for an old exhaust resonator is a new exhaust resonator. By doing this, you can be assured that it will be able to deliver the same functions.

When looking for a resonator, make sure that it is made from premium materials to guarantee its durability. It should be constructed in such a way that it will not be easily prone to wear and tear. It must be effective in minimizing noise, and more importantly, it should be suitable for your muffler or for your car.

Other Ways to Minimize Exhaust Noise

Without a doubt, the use of an exhaust resonator will be a big help in the reduction of noise that is produced by your engine – one thing that a pipe might not be able to do as effectively. Depending on the car that you have, one thing that you can do is to plug the sound tube. If you have a sports car, this tube is located in the glove box.

Another effective solution that does not involve touching the exhaust system is sound deadening. This way, you are minimizing the sound that you can hear inside the car, but not the sound that people can hear outside the car. You can modify the interior of the car in such a way that it can effectively absorb sound.


So, what happens if you replace the exhaust resonator with a pipe? As highlighted in this post, doing so will reduce the efficiency of the engine. It will negatively affect the performance of the engine and its fuel consumption can also increase. For this reason, while a pipe can be used as a replacement for an exhaust resonator, you should not do so.

Have you tried replacing an exhaust resonator with a pipe? Do you have anything to share? Do not forget to write in the comment section below.