2013 BMW 335i Downpipe: Boost Performance and Power

2013 bmw 335i downpipe

If you’re a proud owner of a 2013 BMW 335i, you know that it’s a powerful machine that offers a thrilling driving experience. However, if you’re looking to take your BMW’s performance to the next level, one of the best upgrades you can make is installing a downpipe.

A downpipe is an essential component of the exhaust system that connects the turbocharger to the rest of the exhaust system. It helps to reduce back pressure, allowing the engine to breathe more freely and produce more power. By upgrading your stock downpipe to a high-performance aftermarket option, you can unleash the true potential of your BMW 335i.

One of the main benefits of installing a downpipe upgrade is increased horsepower and torque. By improving the flow of exhaust gases, you can expect a significant boost in performance. Your BMW 335i will accelerate faster, and you’ll feel a noticeable increase in power throughout the RPM range. Whether you’re racing on the track or simply want a more exhilarating driving experience on the streets, a downpipe upgrade is a must.

Another advantage of a downpipe upgrade is improved throttle response. With better exhaust flow, your BMW’s engine will respond more quickly to your inputs, resulting in sharper and more immediate acceleration. This enhanced throttle response will give you a greater sense of control and make your driving experience even more enjoyable.

Furthermore, a downpipe upgrade can also enhance the sound of your BMW 335i. The stock downpipe often restricts the exhaust flow, resulting in a quieter and more subdued exhaust note. By installing a high-quality downpipe, you can achieve a deeper and more aggressive exhaust tone that will truly make your BMW stand out on the road.

Overall, a downpipe upgrade is a worthwhile investment for any 2013 BMW 335i owner looking to maximize their vehicle’s performance. Not only will you experience a significant increase in horsepower and torque, but you’ll also enjoy improved throttle response and a more exciting exhaust note. So why wait? Upgrade your downpipe today and take your BMW 335i to new heights!

Improve your 2013 BMW 335i’s Performance

Are you looking to enhance the performance of your 2013 BMW 335i? Upgrading the downpipe is a great way to achieve noticeable improvements in power and responsiveness.

Increased Horsepower and Torque

One of the main benefits of a downpipe upgrade is the increase in horsepower and torque. By replacing the restrictive factory downpipe with a high-flow aftermarket downpipe, you can improve exhaust flow and reduce backpressure. This allows your engine to breathe better, resulting in more power and torque.

Improved Throttle Response

With a better flowing downpipe, you’ll experience improved throttle response. The reduced backpressure means that your engine can more quickly and efficiently expel exhaust gases, allowing for quicker acceleration and a more enjoyable driving experience.

Note: Before making any modifications to your vehicle, it’s important to check local laws and regulations regarding aftermarket modifications.

When choosing a downpipe upgrade for your 2013 BMW 335i, look for a high-quality option made from durable materials like stainless steel. This ensures that the downpipe will withstand the high temperatures and pressures of the exhaust system, providing long-lasting performance.

Additionally, it’s recommended to have the downpipe upgrade professionally installed to ensure proper fitment and function. A professional installation will help avoid any potential issues or leaks.

Overall, a downpipe upgrade is a worthwhile investment if you’re looking to improve the performance of your 2013 BMW 335i. Not only will you experience increased horsepower and torque, but you’ll also enjoy improved throttle response and a more exhilarating driving experience.

Take your BMW 335i to the next level and upgrade its downpipe to unlock its full potential on the road.

Boost the Power of Your BMW 335i

If you’re looking to enhance the performance and power of your 2013 BMW 335i, upgrading the downpipe is a great place to start. The downpipe is a vital component of the exhaust system that connects the turbocharger to the rest of the exhaust, and replacing it with an upgraded version can result in significant power gains.

One of the main benefits of upgrading the downpipe on your BMW 335i is increased airflow. The stock downpipe is often restrictive, causing the exhaust gases to flow less efficiently. By replacing it with a high-flow downpipe, you can improve the flow of exhaust gases and reduce back pressure, allowing the turbocharger to spool up faster and produce more power.

In addition to increased airflow, a downpipe upgrade can also improve turbocharger response. By reducing back pressure and minimizing turbo lag, the upgraded downpipe allows the turbocharger to respond more quickly, resulting in improved throttle response and a more exhilarating driving experience.

Performance Benefits of a Downpipe Upgrade:

  • Increased horsepower and torque
  • Improved throttle response
  • Reduced turbo lag
  • Enhanced engine sound
  • Potential for improved fuel efficiency

When choosing a downpipe upgrade for your BMW 335i, it’s important to consider factors such as material, design, and certification. Stainless steel downpipes are often preferred for their durability and resistance to corrosion, while a catless downpipe may provide additional performance gains but could also impact emissions. Make sure to check local regulations and consult with an expert to find the best option for your needs.

Installing a downpipe upgrade on your BMW 335i is a relatively straightforward process, but it’s recommended to have it done by a professional to ensure proper installation and avoid any potential issues. With the right downpipe upgrade, you can unleash the full potential of your BMW 335i and enjoy a more exciting and powerful driving experience.

Take Your BMW 335i to the Next Level

If you’re looking to enhance the performance of your 2013 BMW 335i, a downpipe upgrade is an excellent place to start. By replacing your stock downpipe with a high-performance aftermarket option, you can take your BMW to the next level in terms of power, torque, and overall driving experience.

A downpipe is a crucial component of the exhaust system that connects the turbocharger to the rest of the exhaust system. Stock downpipes are often restrictive, limiting exhaust flow and inhibiting the full potential of your BMW’s engine. Upgrading to an aftermarket downpipe will improve exhaust flow, reduce backpressure, and increase horsepower and torque.

Benefits of a Downpipe Upgrade

By upgrading your BMW 335i’s downpipe, you can expect a range of benefits, including:

Performance Sound Efficiency
Increased horsepower and torque Enhanced exhaust note Improved fuel economy
Reduced turbo lag Deeper, more aggressive tone Lower emissions

With a downpipe upgrade, you’ll experience a noticeable increase in power and acceleration, especially in the mid-to-high RPM range. The improved exhaust flow allows the turbocharger to spool up more quickly, resulting in reduced turbo lag and improved throttle response. It’s the perfect upgrade for BMW enthusiasts who crave a more exhilarating driving experience.

Furthermore, a high-performance downpipe will give your BMW 335i a more aggressive exhaust note. You’ll enjoy a deeper, throatier sound that will turn heads wherever you go. However, it’s important to note that some downpipe upgrades may increase the overall volume of the exhaust, so be sure to check local noise regulations before making any modifications.

Choosing the Right Downpipe

Choosing the Right Downpipe

When selecting a downpipe upgrade for your BMW 335i, there are a few key factors to consider:

  1. Material: Look for a downpipe made from high-quality materials like stainless steel or titanium. These materials offer excellent durability and resistance to corrosion.
  2. Diameter: Opt for a downpipe with a larger diameter than the stock option. A larger diameter will further improve exhaust flow and performance.
  3. Catalytic Converter: Decide whether you want a downpipe with or without a catalytic converter. A downpipe without a catalytic converter will provide the greatest increase in performance, but it may not comply with emissions regulations in your area.

Finally, it’s essential to choose a downpipe that is compatible with your BMW 335i’s specific model and year. Ensure that the downpipe is designed to fit seamlessly with the rest of your exhaust system for optimal performance and ease of installation.

With a downpipe upgrade, you can unleash the full potential of your BMW 335i and maximize the driving pleasure it delivers. Take your BMW to the next level with improved performance, enhanced sound, and an overall exhilarating driving experience.

Unleash Your BMW 335i’s Potential

If you own a 2013 BMW 335i, you already know that this car offers a powerful engine and impressive performance. However, if you want to take your driving experience to the next level, it’s worth considering upgrading your downpipe.

The downpipe is an essential component of your vehicle’s exhaust system, responsible for carrying exhaust gases away from the engine and improving airflow. By upgrading your downpipe, you can unlock more power, improve throttle response, and enhance overall performance.

Benefits of a Downpipe Upgrade

  • Increased Horsepower and Torque: Upgrading your downpipe can significantly increase your BMW 335i’s power output. With a larger diameter downpipe, you’ll experience a noticeable boost in horsepower and torque.
  • Improved Turbo Spool: A high-flow downpipe reduces turbo lag and improves the turbo spool time. This means quicker acceleration and a more responsive driving experience.
  • Enhanced Exhaust Sound: Upgrading your downpipe can also give your BMW 335i a more aggressive exhaust note. You’ll enjoy a deeper and sportier sound that will turn heads wherever you go.
  • Better Fuel Efficiency: By improving exhaust flow, a downpipe upgrade can also help optimize fuel efficiency. You’ll get more miles per gallon, saving you money in the long run.

Choosing the Right Downpipe

When selecting a downpipe upgrade for your BMW 335i, it’s crucial to choose a high-quality option that is specifically designed for your vehicle. Look for downpipes made from durable materials like stainless steel, as they offer longevity and resist corrosion.

Additionally, consider a downpipe upgrade that includes a high-flow catalytic converter. This will help ensure your vehicle remains compliant with emissions regulations while still delivering impressive performance gains.

Before making any modifications to your vehicle, it’s always a good idea to consult with automotive professionals who specialize in BMW performance upgrades. They can provide expert guidance and help you choose the best downpipe upgrade for your specific needs and goals.

All in all, upgrading your BMW 335i’s downpipe is an excellent way to unleash its full potential. With increased power, improved throttle response, and a more aggressive exhaust sound, you’ll enjoy a thrilling driving experience that sets your vehicle apart from the rest.

Upgrade Your 2013 BMW 335i with a Downpipe

If you’re looking to enhance the performance of your 2013 BMW 335i, one upgrade that you should consider is a downpipe replacement. A downpipe is a crucial component of your vehicle’s exhaust system, and replacing it can provide several benefits.

One of the main advantages of upgrading your downpipe is improved exhaust flow. The factory-installed downpipe is often restrictive and can impede the flow of exhaust gases. By replacing it with a high-flow downpipe, you can increase the diameter of the pipe and allow the exhaust gases to flow more freely. This improvement in exhaust flow can result in better engine performance and increased power.

Another benefit of upgrading your downpipe is the potential for increased turbo spool-up. The downpipe plays a key role in the turbocharging process by carrying the exhaust gases away from the turbocharger. A high-flow downpipe can reduce backpressure, which, in turn, can help the turbocharger spool up faster. This can result in improved throttle response and a more enjoyable driving experience.

In addition to improved performance, upgrading your downpipe can also enhance the sound of your BMW 335i. The factory downpipe often has a muffler or restrictive design, which can dampen the exhaust note. By replacing it with a high-flow downpipe, you can unleash a more aggressive exhaust sound, giving your BMW a throatier and sportier tone.

When upgrading your downpipe, it’s important to choose a high-quality aftermarket option that is specifically designed for your 2013 BMW 335i. Look for downpipes made from durable materials like stainless steel, which can withstand the high temperatures and harsh conditions of the exhaust system. Additionally, consider options with a high-flow catalytic converter, which can help maintain compliance with emissions regulations while still providing the performance benefits.

In conclusion, upgrading your 2013 BMW 335i with a high-flow downpipe can provide several performance benefits. From improved exhaust flow to increased turbo spool-up and a more aggressive sound, a downpipe replacement can take your BMW driving experience to the next level. Consider investing in a high-quality aftermarket downpipe to enhance the performance and enjoyment of your BMW 335i.

Enhance the Performance of Your BMW 335i

If you are looking to take your BMW 335i to the next level, upgrading the downpipe is a great way to enhance its performance. The downpipe plays a vital role in the exhaust system by connecting the turbocharger to the rest of the exhaust system. By upgrading the downpipe, you can increase the horsepower and torque of your BMW 335i, resulting in improved acceleration and overall performance.

Benefits of a Downpipe Upgrade

There are several benefits to upgrading the downpipe on your BMW 335i:

  • Increased Horsepower: The upgraded downpipe allows for better airflow, which in turn increases the horsepower of your BMW 335i. You can expect a noticeable improvement in acceleration and overall power.
  • Improved Torque: With increased airflow, your BMW 335i will also experience a boost in torque. This means that you will have more power and pulling capability at lower RPMs, resulting in a more responsive and enjoyable driving experience.
  • Enhanced Sound: The upgraded downpipe can also give your BMW 335i a more aggressive and sporty sound. The increased airflow and reduced restrictions in the exhaust system can result in a deeper and more pronounced exhaust note.
  • Better Fuel Economy: While the main aim of a downpipe upgrade is to improve performance, it can also lead to better fuel economy. The improved airflow can optimize the combustion process, resulting in more efficient fuel usage.

Choosing the Right Downpipe

When it comes to choosing the right downpipe for your BMW 335i, there are a few factors to consider:

  1. Material: Downpipes are available in different materials such as stainless steel or titanium. Stainless steel is a popular choice due to its durability and corrosion resistance.
  2. Diameter and Design: The diameter and design of the downpipe can impact performance. A larger diameter downpipe can allow for better airflow, but it is important to ensure that it is compatible with your BMW 335i’s exhaust system.
  3. Brand Reputation: It is always recommended to choose a downpipe from a reputable brand known for producing high-quality performance parts.

Overall, upgrading the downpipe on your BMW 335i is a worthwhile investment if you are looking to enhance its performance. With increased horsepower, improved torque, and a more aggressive sound, you can take your driving experience to new heights. Just make sure to choose the right downpipe that suits your needs and preferences.

Get More Power from Your BMW 335i

Get More Power from Your BMW 335i

If you’re looking to enhance the performance of your BMW 335i, upgrading the downpipe is a great place to start. The downpipe is a crucial component of the exhaust system that connects the turbocharger to the rest of the exhaust system.

A downpipe upgrade can provide several benefits for your BMW 335i. First and foremost, it can increase the power output of your engine. By reducing the restrictions in the exhaust system, a high-quality downpipe allows for better airflow, resulting in more horsepower and torque.

Additionally, a downpipe upgrade can improve the sound of your BMW 335i. The stock downpipe is designed with noise reduction in mind, which can limit the exhaust note of your vehicle. With an upgraded downpipe, you can unlock a deeper and more aggressive exhaust tone.

Choosing the Right Downpipe

When selecting a downpipe for your BMW 335i, there are a few key factors to consider. First, you’ll want to determine whether you want a catted or catless downpipe. A catted downpipe includes a catalytic converter, which helps reduce emissions but may slightly restrict airflow. A catless downpipe, on the other hand, provides the least amount of restriction but may not be legal in some areas.

Next, you’ll want to choose between a stainless steel or an aluminum downpipe. Stainless steel downpipes are known for their durability and resistance to corrosion, making them a popular choice among BMW enthusiasts. Aluminum downpipes, on the other hand, are typically lighter and offer slightly better heat dissipation.

The Installation Process

Installing a downpipe upgrade on your BMW 335i is a relatively straightforward process, but it does require some mechanical knowledge and tools. It’s recommended to have the installation done by a professional if you’re not comfortable working on your own vehicle.

During the installation, the stock downpipe will be removed and replaced with the upgraded downpipe. Depending on the specific downpipe you choose, you may also need to install additional components such as new gaskets or brackets.

It’s important to note that installing a downpipe upgrade may affect the emissions system of your BMW 335i. Depending on the regulations in your area, this could potentially void your vehicle’s warranty or result in failed emissions tests.

In conclusion, upgrading the downpipe of your BMW 335i is an effective way to increase power and improve the sound of your vehicle. However, it’s important to research and choose the right downpipe for your specific needs and to consider the potential consequences of modifying your vehicle’s emissions system.

Turbocharge Your BMW 335i with a Downpipe Upgrade

If you’re looking to enhance the performance of your 2013 BMW 335i, a downpipe upgrade is a must-have modification. The stock downpipe restricts the airflow from the turbocharger, limiting the power potential of your car. By installing an upgraded downpipe, you can unlock the true power of your BMW 335i.

Improved Exhaust Flow

One of the primary benefits of a downpipe upgrade is improved exhaust flow. The stock downpipe is often restrictive, featuring bends and a small diameter that hampers the flow of exhaust gases. By replacing it with a high-quality aftermarket downpipe, you can significantly increase the flow of exhaust gases, allowing your turbocharger to spool up faster and produce more power. This improves throttle response and overall engine performance.

Increased Horsepower and Torque

With a downpipe upgrade, you can expect a noticeable increase in horsepower and torque. The improved exhaust flow reduces backpressure on the turbocharger, allowing it to generate more boost pressure and deliver additional power to the wheels. This results in a significant increase in overall performance, making your BMW 335i feel more responsive and powerful.

In addition to the increased horsepower and torque, a downpipe upgrade can also enhance the engine’s sound. The smoother and freer-flowing exhaust allows for a deeper and more aggressive exhaust note, giving your BMW 335i a more thrilling and sporty sound.

Compatibility and Installation

When purchasing a downpipe upgrade for your BMW 335i, it’s important to ensure that it is compatible with your specific model and year. Look for downpipes that are specifically designed for the N55 engine found in 2013 BMW 335i models. This ensures a proper fitment and optimal performance.

Installation of a downpipe upgrade typically requires basic hand tools and moderate mechanical skills. While it’s possible to install it yourself, it’s recommended to have the installation done by a professional to ensure proper fitment and avoid any potential issues.

In conclusion, a downpipe upgrade is a great way to turbocharge your BMW 335i. By improving exhaust flow and reducing backpressure, you can unlock the true power potential of your car, with noticeable increases in horsepower, torque, and overall performance.

Experience a Thrilling Upgrade for Your BMW 335i

If you’re the proud owner of a 2013 BMW 335i, you know that this luxury sports car already offers an exhilarating driving experience. But what if we told you that there’s a way to take the performance of your BMW to the next level?

With a downpipe upgrade, you can unleash the true power of your BMW 335i and enjoy a thrilling upgrade that will enhance your driving experience like never before.

More Power, More Torque

By replacing your factory downpipe with a high-performance aftermarket downpipe, you’ll unleash a significant boost in power and torque. This upgrade will improve exhaust flow, increase turbo spooling, and reduce back pressure, resulting in a noticeable increase in horsepower and torque.

Whether you’re accelerating from a standstill or passing other vehicles on the highway, you’ll feel the added power and torque that the upgraded downpipe provides. The increased responsiveness and acceleration will surely put a smile on your face every time you get behind the wheel.

Improved Exhaust Sound

Not only will a downpipe upgrade enhance the performance of your BMW 335i, but it will also give your car a more aggressive and sporty exhaust note. The high-flow design of the aftermarket downpipe allows for better airflow and creates a deeper, more resonant sound that will turn heads wherever you go.

Whether you’re cruising through the city streets or tearing up the track, the improved exhaust sound of your upgraded BMW 335i will make a statement and let everyone know that your car means business.

Benefits of a Downpipe Upgrade for Your BMW 335i:
Significant increase in power and torque
Improved exhaust flow and reduced back pressure
Enhanced turbo spooling and responsiveness
A more aggressive and sporty exhaust note
Improved performance and driving experience

Upgrade your BMW 335i with a high-performance downpipe, and experience the thrill of enhanced power, improved exhaust sound, and overall better driving experience. Don’t settle for a stock performance – take your BMW to new heights with a downpipe upgrade.

Maximize the Performance of Your 2013 BMW 335i

If you’re looking to take your 2013 BMW 335i to the next level in terms of performance, there are several upgrades you can consider. By making a few modifications, you can enhance the power, handling, and overall driving experience of your vehicle.

1. Performance Tuning

One of the first and most effective upgrades you can make to your BMW 335i is to have it tuned for performance. A professional tuning service will optimize the engine’s settings to increase horsepower, torque, and overall responsiveness. With a performance tune, you’ll experience noticeable gains in acceleration and top speed, making your driving experience more exhilarating than ever before.

2. Intake and Exhaust Upgrades

Upgrading your intake and exhaust system is another great way to maximize the performance of your BMW 335i. By replacing the stock air intake with a high-flow intake system, you can increase the amount of air reaching the engine, resulting in improved throttle response and overall power. Additionally, installing a performance exhaust system will allow for better flow of exhaust gases, further enhancing horsepower and torque.

When choosing intake and exhaust upgrades, look for reputable brands that are designed specifically for your BMW 335i. This way, you can ensure proper fitment and compatibility with your vehicle’s engine and components.

3. Suspension Upgrades

If you’re looking to enhance the handling and stability of your BMW 335i, consider upgrading the suspension components. Upgrading to performance shocks, struts, and springs will improve the car’s response to steering inputs and reduce body roll in corners. This will result in a more composed and agile driving experience, allowing you to take corners with confidence and maintain better control of the vehicle.

It’s important to note that when upgrading suspension components, it’s best to consult with a professional or experienced technician to ensure proper installation and alignment. This will help prevent any issues with ride quality or excessive tire wear.

In conclusion, by investing in performance tuning, intake and exhaust upgrades, and suspension enhancements, you can maximize the performance of your 2013 BMW 335i. Not only will these upgrades increase horsepower and torque, but they will also improve acceleration, handling, and overall driving enjoyment. So why wait? Take your BMW 335i to the next level and start enjoying the full potential of your luxury sports sedan.

Take Your BMW 335i to New Heights with a Downpipe Upgrade

If you’re looking to take your BMW 335i to new heights in terms of performance, look no further than a downpipe upgrade. An upgraded downpipe can significantly enhance the performance of your 2013 BMW 335i, giving you a thrilling driving experience and unleashing the true potential of your vehicle.

Why should you consider a downpipe upgrade? The factory downpipe on your BMW 335i is designed with restrictions in place to meet emissions standards and noise regulations. While this is important from a regulatory standpoint, it can limit the power and performance capabilities of your vehicle. By replacing the factory downpipe with an upgraded aftermarket option, you can remove these restrictions and allow your engine to breathe more freely.

A downpipe upgrade offers several benefits, including increased horsepower and torque, improved throttle response, and a more aggressive exhaust sound. By increasing the diameter and improving the design of the downpipe, exhaust gases can flow more efficiently, reducing back pressure and allowing for better air intake and exhaust flow. This results in increased power and performance across the RPM range, making your driving experience even more exhilarating.

Choosing the Right Downpipe Upgrade

When selecting a downpipe upgrade for your BMW 335i, it’s important to consider a few key factors. Firstly, ensure that the downpipe is compatible with your specific model and year. Look for one that is specifically designed for the F30 chassis and N55 engine of the 2013 BMW 335i.

Additionally, consider the material and construction of the downpipe. Stainless steel is a popular choice due to its durability and resistance to corrosion, providing long-lasting performance. Look for a downpipe that is mandrel-bent for optimal flow and choose one with a high-flow catalytic converter if emissions compliance is a concern in your area.

Lastly, installation is another important consideration. While a downpipe upgrade is not overly complicated, it is recommended to have it installed by a professional to ensure proper fitment and to prevent any potential issues down the road.

Conclusion

Upgrading the downpipe of your 2013 BMW 335i is a fantastic way to enhance its performance and take your driving experience to new heights. With increased horsepower and torque, improved throttle response, and a more aggressive exhaust sound, you’ll undoubtedly feel the difference every time you get behind the wheel. Make sure to choose a downpipe that is compatible with your specific model, consider the material and construction, and have it professionally installed for the best results. Get ready to unleash the true potential of your BMW 335i with a downpipe upgrade!

Question-answer:

Why should I upgrade the downpipe on my 2013 BMW 335i?

An upgraded downpipe can significantly improve the performance of your BMW 335i. It increases horsepower and torque, improves throttle response, and enhances the engine sound. It also allows for better exhaust flow, reducing backpressure and increasing overall efficiency.

What benefits can I expect from a downpipe upgrade?

By upgrading your downpipe, you can expect a noticeable increase in horsepower and torque. This will result in faster acceleration and improved overall performance. You may also experience improved fuel efficiency, as the engine will be operating more efficiently with the increased airflow.

How difficult is it to install a downpipe upgrade on a BMW 335i?

The difficulty level of installing a downpipe upgrade can vary depending on your level of experience with car modifications. It is generally recommended to have some knowledge of automotive mechanics or to consult a professional for installation. It typically involves removing the stock downpipe and replacing it with the upgraded one, along with making any necessary adjustments or modifications to ensure proper fitment.

Will upgrading the downpipe on my BMW 335i void the warranty?

Modifying your BMW 335i, including upgrading the downpipe, can potentially void your warranty. It is important to check with your dealership or manufacturer to understand their specific policies regarding aftermarket modifications. Some manufacturers may offer warranty coverage for certain aftermarket parts or may have their own approved performance upgrades that won’t void the warranty.

What materials are downpipes typically made of?

Downpipes for BMW 335i and other performance cars are often made from high-quality materials such as stainless steel or titanium. These materials are chosen for their durability, resistance to corrosion, and ability to handle high temperatures. Stainless steel downpipes are more common and provide a good balance of performance and cost, while titanium downpipes are lighter and offer even better performance, but at a higher price point.

What is a downpipe upgrade?

A downpipe upgrade is an aftermarket modification that replaces the stock downpipe on a vehicle with a larger and more free-flowing one. It is often done to increase performance and improve exhaust flow.

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