The Pros and Cons of Muffler Removal (and the Average Cost)

If you are looking to make modifications to your exhaust, it’s likely that you’ve considered the muffler delete. How much is a muffle delete? The cost of a muffler delete depends on several factors such as your car's make and model, where you live, and how often you need it service.

This article will explain everything you need to know regarding a muffler deletion. We will show you how to reduce the price and review all the advantages and disadvantages. 

What does a Muffler Remove?

A muffler delete refers to removing the muffler(s) from your car’s exhaust system. Mufflers are used to lower the engine noise. There are many car models that have multiple mufflers in the exhaust system. These can be easily removed if necessary.

A straight pipe exhaust can be made, however it requires the removal of the catalytic converter and the muffler. Although the services can be referred to as one, straight pipe exhaust is more complicated.

Many exhaust pipes come with multiple mufflers.

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Muffler Delete Pros

1. Increased Horsepower

Removing the muffler won’t increase horsepower in all vehicles. However, it’s can make a significant improvement on many older cars. It is more common to remove the muffler from large-powered cars or vehicles that have high horsepower.

Older vehicles may have restrictive mufflers. They also increase the engine backpressure, which isn’t good for the motor anyway. You can increase top-end horsepower by removing the muffler and protect your engine. 

2. Aggressive Exhaust Note

Sure, the muffler delete is going to help the older engine, but it doesn’t provide any performance benefits for most newer models if your car doesn’t have a lot of horsepowers. Instead, it’s done solely to change the tone coming from the car.

You will hear a louder note from your exhaust if you remove the muffler. The muffler is a noise reducer so it will accent your tone. 

RELATED: How to Make Your Car’s Exhaust Sound Louder (8 Ways)

Muffler Delete Cons

1. Loud Exhaust

This point is a plus, but it could also be detrimental for others. Although the loud exhaust sounds exciting, it can quickly become tiresome. Be prepared to not hear your family members if you take long trips.

The car's sound will get louder as you increase its RPM. You can hear the exhaust getting louder as more air passes through it. It doesn’t take long for this noise to get annoying. 

2. Illegal

It is possible that you are breaking the law by removing the mufflers from your vehicle. To find out the rules, check your local laws.

However, most cops aren’t going to pull you over for not having a muffler on. However, cops have every right, particularly if your violation of any noise ordinances are present. 

3. This reduces the engine's performance

You may be wondering what the downsides are to the benefits. Yes, engine performance improvements were listed as benefits, but they only apply to high-powered older vehicles.

Sometimes, the opposite can happen if you have a larger engine and a more recent car. Automakers designed the ECM so that it could be used in combination with the muffler. It is possible to notice a decrease in performance if the ECM is removed. It’s also possible that the Check Engine Light could come on. 

4. Failure to Emit

Emission testing is required in 34 states. If you live in one of these states and you remove the catalytic converter, your vehicle isn’t going to pass the test. This can lead to the Check Engine Light coming on and possibly a failure.

However, just removing the muffler shouldn’t cause failed emissions. The technicians may still fail to pass your vehicle if they inspect it. The muffler must be reinstalled in order for the vehicle to pass inspection. 

What is the Average Cost of a Muffler to be Removed?

An average cost of a muffler deletion is $150 to $450. Parts should be purchased for between $50 to $200. If you can do the job yourself, you won’t spend anything on labor. You can expect to pay between $100 and $250 for labor. 

Sometimes it can be hard to locate someone who will perform the muffler deletion. In most cases, removing the muffler is illegal, so it’s hard to find someone willing to participate in the modification. 

RELATED: What is a Straight Pipe Exhaust System and How Does It Work? Pros, Cons & Cost

Aspects Determining Muffler Delete Cost

1. Style of the Car

To connect the tailpipe to your exhaust system, after you have removed the muffler you'll need to attach a pipe. Depending on the type of vehicle you have, there are different parts that will be required. 

The labor cost will vary depending on the vehicle you have. A complex exhaust system could mean a higher cost than one with a simpler design. 

2. Exhaust Pipe Type

There are many types of exhaust pipes that you have the option to choose from. While you can get a mild steel pipe if you want to save money, it’s often better to spend a little more on stainless steel or in some cases, even titanium.

They are more durable. While they will cost more upfront, you shouldn’t need to replace them any time soon, thereby giving you a better value. 

3. Labor

The labor rates you pay depend on the type of shop and where you live. You can see a big difference in hourly rates based on what’s quoted in the city versus the country. 

It also matters what shop you choose to visit. Visit an exhaust shop instead of your usual auto repair place and you will likely pay more. 

DIY Muffler Delete

1. You can check the local laws

You should research the laws in your area and state before you make any modifications to your exhaust. Most modifications to exhaust systems are illegal. Before you take any action, you should research your state and local laws.

This makes it hard to find an automobile technician that is willing to take out the muffler. Maybe that’s why you are trying to do it yourself in the first place. If you don't have the time or desire to spend money, making your own muffle delete can help you save. 

2. Get your car jacked up

To get underneath the car, you will need plenty of space to move. You will need to place the car on a jack and jack stands.

The service manual will indicate the location where the jack should be placed. To support the vehicle, jack the car up to the right height. 

3. Remove Exhaust Clamps

With the use of special clamps, the muffler can be attached to your exhaust. If you wish to remove the muffler, these U-shaped clamps must be taken off. These clamps can be difficult to take off because they are frequently rusted.

Spray the nuts with WD-40 before you start. You can make the job easier by letting the solution sit on the nuts. 

Sometimes, cutting the exhaust pipe is the only option. You may have to cut the exhaust pipe if it has been permanently welded. 

4. Attach Tailpipe

You must choose the type of exhaust pipe you wish to install. The cost of mild steel pipes is less expensive. But, stainless steel pipes will provide greater corrosion resistance. You won’t spend that much more to get one made from stainless steel and the investment is worth the cost.

You don’t always need to add an exhaust pipe. It all depends on the type of vehicle you have. A straight pipe connecting to the exhaust can make your vehicle more efficient. A straight pipe is required to connect to the exhaust pipe in most cases. This arrangement should perform all functions. However, measurements may differ depending on your car.

To connect the new pipe to your old exhaust pipe, you may require a 90 degree exhaust adapter. It is important to take time clamping the pipes. The pipes can be welded to the exhaust for a long-lasting application. This is however more challenging to modify in the future especially if there are additional emissions requirements.