How to Make Motorcycle Exhaust Sound Deeper

Do you want your motorcycle to sound more aggressive and powerful?

One of the easiest ways to achieve that is by making your exhaust sound deeper and throatier. While this modification may seem complicated or expensive, simple methods can help riders achieve the desired sound.

In this article, I’ll explore effective ways to make your motorcycle exhaust sound deeper and give you the satisfying rumble you crave.


How to | Pros & Cons | Function of an exhaust | Exhaust effect on performance | Does bigger pipe = deeper sound | Make motorcycle sound like Harley

How to Make Motorcycle Exhaust Sound Deeper

If you’re looking to make your motorcycle exhaust sound deeper, consider the following modifications:

Modify the Stock Muffler

If you’re not looking to spend much money, you can modify the existing stock muffler to make the exhaust sound deeper.

Just drill holes in the baffle or replace the baffle with a less restrictive one.

Add a Slip-On or Performance Muffler

Adding a slip-on or performance muffler is one of the easiest and most popular ways to make your motorcycle exhaust sound deeper.

These are designed to be less restrictive than stock mufflers and can provide a deeper, more aggressive sound.

Remove the Baffles

Removing the baffles from your motorcycle exhaust can also make it sound deeper, but this modification can affect performance and aren’t legal in some areas.

Add a Full Performance Exhaust System

Installing a full-performance exhaust system can provide a deeper exhaust note and improved performance.

These systems can be more expensive than slip-on or performance mufflers but can provide a significant upgrade in terms of sound and performance.

Purchase an Aftermarket Exhaust

Many aftermarket exhaust systems can provide a deeper exhaust note. These can range from slip-on mufflers to full exhaust systems and work for many models.

Tune the Carburetor After an Exhaust Upgrade

man working on carburetor

After upgrading your motorcycle exhaust, it may be necessary to adjust the carburetor to ensure proper fuel/air mixture. This can help improve performance and the sound of the exhaust.

Altering your motorcycle exhaust can affect performance, fuel efficiency, and noise levels and may not be legal in all areas.

Therefore, before making any modifications, consult local regulations and a professional mechanic or exhaust specialist to ensure the modification is safe and effective.

Pros and Cons of a Loud Motorcycle Exhaust

motorcycle double exhaust

Regarding motorcycle exhausts, riders are often split on whether to go for a loud or quiet system.

While a loud exhaust can have some advantages, it also has a few drawbacks. Here’s a summary of loud motorcycle exhaust’s main pros and cons.

Pros of a Loud Motorcycle Exhaust:

  • Increased Safety: One of the main advantages of a loud motorcycle exhaust is increased safety. A loud exhaust can alert other drivers and pedestrians of your presence, especially when they may not otherwise be able to see you, such as when changing lanes or turning.
  • Enhanced Performance: A loud motorcycle exhaust can sometimes improve performance. A less restrictive exhaust can reduce back pressure and increase exhaust gas flow, improving horsepower and torque.
  • Customization: For many riders, a loud exhaust is a personal preference. A loud exhaust can give your motorcycle a unique sound and help it stand out from the crowd.

Cons of a Loud Motorcycle Exhaust:

  • Noise Pollution: One of the main drawbacks of a loud motorcycle exhaust is the potential for noise pollution. Loud motorcycles can irritate people living or working nearby and even cause hearing damage for riders and passengers.
  • Legal Issues: Laws and regulations govern motorcycles’ maximum allowable noise levels in many areas. Riding a motorcycle with a loud exhaust can lead to fines or other legal penalties, which can be expensive and time-consuming.
  • Negative Attitudes: Loud motorcycles can also attract negative attitudes from other drivers and members of the public. Riders with loud exhausts may be seen as obnoxious or disrespectful, which can lead to social stigma and potentially even harm the image of the motorcycling community as a whole.
  • Reduced Resale Value: Finally, a loud exhaust can also reduce the resale value of your motorcycle. Many buyers may be put off by a loud exhaust, especially if they live in areas with noise restrictions or have concerns about the environmental impact of loud motorcycles.

Related: Best time to buy a motorcycle

In summary, while a loud motorcycle exhaust can have some advantages, it’s important to consider the potential drawbacks before making any modifications.

What is the Use of an Exhaust on a Motorcycle

The primary use of exhaust on a motorcycle is to expel the hot gases produced by fuel combustion in the engine.

As the engine burns fuel, it creates exhaust gases that need to be removed from the engine cylinders to prevent backpressure, which can cause reduced performance or engine damage.

The exhaust system on a motorcycle typically consists of a series of pipes, a muffler, and other components that direct the exhaust gases out of the engine.

In addition to its functional role, a motorcycle’s exhaust can impact its performance, fuel economy, and sound.

Many riders also customize their exhausts for aesthetic or personal preference reasons.

How Does Exhaust Affect Motorcycle Performance

rear of motorcycle tire showing exhaust

The exhaust on a motorcycle can have a significant impact on its performance. Here are a few ways in which the exhaust can affect the performance of a motorcycle:


A key factor in motorcycle performance is the amount of back pressure in the exhaust system. Backpressure is the resistance the exhaust gases encounter as they exit the engine.

Too much backpressure can reduce performance, while too little can cause other problems. The size and shape of the exhaust pipes, and the presence or absence of mufflers and baffles, can affect the system’s backpressure.

Exhaust Gas Flow

The flow of exhaust gases through the system is also important. A less restrictive exhaust can improve the flow of exhaust gases, allowing the engine to operate more efficiently and produce more power.

Power and Torque

By reducing backpressure and improving exhaust gas flow, an aftermarket exhaust can increase the power and torque of a motorcycle. This can result in quicker acceleration, faster top speeds, and improved overall performance.

Weight Reduction

In addition to improving performance, some aftermarket exhausts can also reduce the weight of a motorcycle. This can make the bike more agile and easier to handle.


The sound of the exhaust can also affect the performance of a motorcycle. A loud exhaust can create a perception of increased power, even if the actual performance gains are minimal.

On the other hand, a quieter exhaust can reduce noise pollution and help riders avoid legal issues in areas with noise restrictions.

In short, the exhaust on a motorcycle can have a significant impact on its performance. By altering the exhaust system, riders can improve backpressure, exhaust gas flow, power, and torque and even reduce weight.

It’s important to note that modifications to the exhaust system can also affect the bike’s fuel economy, emissions, and sound.

Related: How to make your motorcycle exhaust quieter

Does Bigger Exhaust Pipe Make Deeper Sound


A bigger exhaust pipe can produce a deeper sound in a motorcycle’s exhaust system. A larger pipe can allow more air and exhaust gases to flow, creating a deeper tone.

However, the size of the exhaust pipe is just one factor that can affect the sound of a motorcycle’s exhaust.

The design of the muffler, the presence or absence of baffles, and the engine type can also play a role in determining the sound.

Additionally, modifying the exhaust system in other ways, such as changing the muffler or removing baffles, can significantly impact the sound of a motorcycle’s exhaust.

Ultimately, a combination of factors determines the sound of a motorcycle’s exhaust. A bigger exhaust pipe is one of many variables affecting the overall tone.

How to Make Your Motorcycle Sound Like a Harley


Many riders are interested in making their motorcycle sound like a Harley.

While every bike has its unique sound, some modifications can provide a Harley-like exhaust note. Consider the following steps:

Install a Harley-Style Exhaust System

Installing a new exhaust system is one of the most effective ways to get a Harley-like sound.

Many aftermarket exhaust systems are designed to mimic the sound of a Harley, and you can find options specifically designed for your bike model.

Remove Baffles

Another way to achieve a louder and more distinctive exhaust note is to remove the baffles in your bike’s exhaust system. This can increase the volume and alter the tone of the exhaust, making it sound more like a Harley.

However, remember that this modification may not be legal in some areas and can result in a ticket or fine.

Modify the Muffler

In addition to installing a new exhaust system or removing baffles, you can modify the muffler on your bike to achieve a Harley-like sound.

This can involve drilling holes in the muffler, cutting it open and removing material, or installing a different type of muffler altogether.

Tune the Engine

The sound of the exhaust is also affected by how the engine is tuned. To achieve a Harley-like sound, you may need to adjust the fuel injection, carburetor, or ignition system to achieve a deeper, more rumbling sound.

It’s important to note that modifying your bike’s exhaust can have legal and environmental implications.

Some areas have noise ordinances that restrict the volume of motorcycle exhaust, and removing catalytic converters or altering emissions systems can be illegal and harmful to the environment.

Before modifying your bike’s exhaust system, always check your local laws and regulations.


Making your motorcycle exhaust sound deeper can enhance your riding experience and make your bike stand out.

However, it’s important to remember that modifying your exhaust can affect your bike’s performance and may also violate noise regulations.

Before making any changes, check your local laws and consult a professional if necessary. With the right approach and precautions, you can enjoy a deeper and more impressive sound from your motorcycle exhaust.