Upgrading your motorcycle's exhaust system can be a relatively easy and cost-effective way to unlock a trifecta of improvements. These include: enhanced performance, a more appealing aesthetic, and a distinctive, soul-stirring exhaust note.
However, it's important to acknowledge that while some exhaust modifications can indeed be straightforward and DIY-friendly, not all changes fall into this category. In some cases, delving into the realm of exhaust upgrades may require a more substantial overhaul that demands the expertise of an experienced mechanic.
In this guide, we'll delve deeper into the world of motorcycle exhaust systems, exploring the options, benefits, and considerations that can help you make an informed choice for your ride.
We'll cover:
- What is a motorcycle exhaust and its purpose?
- What are the three functions of the exhaust system?
- What are the benefits of upgrading your exhaust?
- Slip-on vs full exhaust
- What should you consider when choosing an exhaust?
- Additional characteristics
- Legal and practical concerns with motorcycle exhausts
- Our top three choices for riders: MIVV, Scorpion and Zard
- MIVV Exhausts
- Scorpion Exhausts
- Zard Exhausts
- Final thoughts on upgrading your motorcycle exhaust
What is a motorcycle exhaust and its purpose?
The motorcycle exhaust system is more than just a set of pipes; it's a vital component that contributes to your bike's overall performance and character. Understanding its functions is key to making informed decisions about upgrading your exhaust.
What are the 3 functions of the exhaust system?
Expelling Exhaust Gasses: The primary purpose of a motorcycle exhaust system is to safely and efficiently expel the byproducts of combustion, including carbon monoxide, nitrogen oxides, and unburned hydrocarbons. This function is essential for both rider and environmental safety.
Enhancing Engine Performance: A well-designed exhaust system can significantly improve your motorcycle's engine performance. It does this by optimizing the flow of exhaust gasses, reducing backpressure, and enhancing scavenging, which helps the engine breathe more efficiently. This, in turn, leads to increased horsepower and torque, resulting in improved acceleration and top-end speed.
Sound Control: Beyond its functional aspects, the exhaust system contributes to the unique sound and character of your motorcycle. The specific design of the exhaust, including its length, diameter, and muffler configuration, can shape the tone and volume of the exhaust note, giving your bike its distinctive voice.
What are the benefits of upgrading your exhaust?
Upgrading your motorcycle's exhaust system can have a profound impact on your riding experience, offering a range of tangible benefits.
Speed: One of the most noticeable benefits of an upgraded exhaust system is increased speed and acceleration. With reduced backpressure and a more optimized exhaust gas flow, the engine can get air more freely, leading to more power. This translates to improved acceleration and potentially higher top speeds.
Weight: Many aftermarket exhaust systems are constructed from lightweight materials like titanium or carbon fiber. Replacing your stock exhaust with a lighter one can reduce the overall weight of your motorcycle. This reduction enhances the bike's handling and maneuverability, especially in corners and during quick direction changes.
Economics: While an aftermarket exhaust system is an investment, it can pay off in the long run. Improved engine efficiency can lead to better fuel mileage, saving you money on gas. Additionally, increased engine longevity may reduce maintenance and repair costs over time. One other factor to keep in mind is that aftermarket exhaust systems can oftentimes be cheaper than their OEM counterparts. So if you find yourself in a “need” situation versus a “want”, an aftermarket option might be more economical.
Look and Sound: Upgrading your exhaust is a fantastic way to give your motorcycle a unique aesthetic and sound. Different exhaust designs and materials can enhance the overall appearance of your bike and provide it with a distinct auditory signature, making it stand out from the crowd.
Depending on the specific exhaust system you choose, you can enjoy a combination of these benefits. Many riders seek a balance between speed, weight reduction, economics, and the aesthetics and sound of their motorcycle.
Slip-On vs full exhaust
There are two general categories of motorcycle exhaust that we’ll consider in this article. A slip-on exhaust involves replacing the muffler, whereas a full exhaust is much more extensive. In detail:
- Full Exhaust: A full exhaust system replaces the entire stock exhaust, including the headers, pipes, and muffler(s). This type of upgrade often results in significant performance gains but may require additional adjustments to the motorcycle's fuel delivery system. When installing a full exhaust, it's essential to consider the potential need for a fuel tuner or ECU reprogramming to optimize air-fuel ratios.
- Slip-On Exhaust: Slip-on exhausts are easier to install and involve replacing only the muffler portion of the exhaust system. They are a more accessible option for riders seeking a straightforward upgrade that doesn't require extensive modifications to the bike. Slip-ons often provide a noticeable improvement in sound and aesthetics.
Are slip-on exhausts bad for motorcycles?
No, slip-on exhausts are not inherently bad for motorcycles. In fact, they are a popular choice among riders looking for an easier and less invasive way to upgrade their exhaust systems. Slip-on exhausts offer benefits like improved sound and aesthetics without requiring extensive modifications to the bike. However, the extent of performance improvement with slip-ons may be less than that of full exhaust systems.
Will any slip-on exhaust fit?
While slip-on exhausts are designed to fit a wide range of motorcycle models, it's essential to ensure compatibility with your specific bike. Manufacturers often provide fitment information, and you can consult with authorized dealers or check online resources to confirm that a particular slip-on exhaust will work with your motorcycle. Additionally, consider whether any additional modifications or adjustments are required during installation.
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What should you consider when choosing an exhaust?
Selecting the right exhaust system for your motorcycle involves a close evaluation of several factors.
Start by defining your end goals for the exhaust. Clearly articulate what you want to achieve with your new exhaust system. Are you seeking improved performance, a unique look, a specific exhaust note, or a combination of these factors? Having a clear understanding of your objectives will help you make a more informed and satisfying choice when it comes to upgrading your motorcycle's exhaust system.
Next, take into account what you've already done so far with your motorcycle. Ensure that the chosen exhaust complements any other modifications you've made. A well-coordinated set of upgrades can yield optimal results in terms of both performance and aesthetics.
Your riding style also plays a crucial role in the decision-making process. Different exhaust systems are designed with specific riding styles in mind. For example, sportbike riders may prioritize lightweight, high-performance exhausts, while cruiser riders might focus on aesthetics and sound.
Additionally, you should weigh the difficulty of the installation against your mechanical skills. Consider whether you have the necessary skills and tools to install the exhaust system yourself, or if you'll need professional assistance, as some installations can be complex and may require tuning or adjustments. For example, if you decide to go with a full exhaust system, you will have to take into account the fuel delivery systems that will be impacted by the upgrade.
Finally, consider the cost. Determine your budget for the exhaust upgrade, as exhaust systems come in a wide price range, and finding one that offers the best value for your money is essential.
Additional characteristics to consider:
Once you’ve figured out the more general goals for your exhaust upgrade and the extent to which you want the project to go, there are other factors to keep in mind.
- Materials: The material used for your exhaust system can impact its weight, durability, and aesthetics. Stainless steel is known for its corrosion resistance, titanium is exceptionally lightweight, and carbon fiber provides a unique look.
- Sound: The sound profile of your exhaust is a crucial consideration. Different exhaust designs, muffler configurations, and materials can result in a wide range of sounds, from a deep rumble to a high-pitched scream. Choose one that aligns with your preferences and local noise regulations.
- Aesthetics: The appearance of your exhaust system can significantly influence your bike's overall look. Some riders prefer a sleek and understated design, while others seek a bold and eye-catching style.
It's important to note that some exhaust systems, especially those made from stainless steel, may change color over time due to heat exposure. This natural patina can add character to your motorcycle but may not be to everyone's taste.
Legal and practical concerns with motorcycle exhausts
In Virginia, where we are based, Virginia Code § 46.2-1049 prohibits the operation of a motorcycle that does not have a muffler or that has a muffler cutout, bypass, or similar device.
It is highly recommended that you don't run your bike without a muffler as not only do you risk this legal concern but also damage to your engine due to a significant decrease in backpressure. The muffler should be in good working condition and comply with the EPA's noise standards.
In Virginia, you’ll also be subject to state safety inspection requirements.
Our top three choices for riders: MIVV, Scorpion and Zard
Though the options for exhausts are vast, there are three brands in our opinion that stand out from the crowd: MIVV, Scorpion, and Zard. We’ll take a look at each brand so that you can get an overview of these incredible products.
No matter which you choose, you can rest assured that you’ll enjoy all of the benefits associated with an upgraded motorcycle exhaust.
MIVV Exhausts
At Moto Machines, one of our top recommendations is MIVV exhausts. MIVV is an Italian company with a long-standing reputation for producing high-quality exhaust systems that cater to a wide range of motorcycle brands and models. Their exhausts are precision-engineered to enhance both the aesthetics and performance of your bike.
Are MIVV Exhausts any good?
Yes, MIVV exhausts are highly regarded in the motorcycle community for their quality and performance. They have a reputation for delivering improved engine performance, distinctive sound profiles, and durability. Riders often choose MIVV exhausts for their reliability and ability to enhance both the aesthetics and performance of their motorcycles.
MIVV offers a variety of exhaust systems, including slip-ons and full exhausts, to suit different preferences and riding styles. With materials like stainless steel, titanium, and carbon fiber, they provide options that combine durability and lightweight construction. MIVV exhausts are also known for their distinctive sound profiles, allowing you to choose the perfect exhaust note for your ride.
Buy Mivv Exhausts
Scorpion Exhausts
Scorpion Exhaust is a renowned British company with several decades in the industry. Scorpion offers a broad product range that includes slip-on exhausts, full exhaust systems, and components like headers and de-cat pipes, catering to a diverse array of motorcycle makes and models, from sportbikes and cruisers to adventure bikes.
How much horsepower does a Scorpion exhaust add?
Through meticulous engineering that optimizes exhaust gas flow, reduces backpressure, and enhances engine breathing, Scorpion exhausts typically lead to a decent increase in horsepower, generally about 5-10%, torque, and improved throttle response.
One of the standout features of Scorpion exhausts is their distinctive exhaust note. These exhausts are designed to produce a unique and sporty sound profile that not only pleases the rider's ears but also adds to the overall riding experience. Scorpion offers various sound profiles to cater to different rider preferences, allowing customization of the auditory experience.
Buy Scorpion Exhausts
Zard Exhausts
Zard Exhausts, another esteemed Italian manufacturer, boasts a range of impressive features that make their aftermarket exhaust systems highly sought after by motorcycle enthusiasts.
Among these features, the use of top-tier materials stands out. Zard Exhausts are crafted from premium materials like stainless steel, titanium, and carbon fiber, ensuring durability, resistance to corrosion, and weight savings. These materials not only improve the exhaust's longevity but also enhance the motorcycle's overall performance by reducing weight.
Buy Zard Exhausts
Performance gains are a Zard hallmark. Their designs optimize exhaust gas flow, minimize backpressure, and enhance engine breathing, leading to noticeable improvements in horsepower and torque.
Distinctive sound profiles are another defining feature of Zard Exhausts. These exhausts are engineered to produce unique and captivating exhaust notes, allowing riders to tailor their bikes' auditory experience.
Check out this review of their full system on a Triumph Trident 660.
Final thoughts on upgrading your motorcycle exhaust
When upgrading your motorcycle's exhaust, make an informed choice that aligns with your riding goals, preferences, and practical considerations. Whether you're seeking a power boost, a unique look, or a signature exhaust note, selecting the right system can transform your riding experience and make your motorcycle truly your own.
Contact us with any questions or for advice on which exhaust might be right for your bike.
