So, you're looking to upgrade the exhaust on your 2020 BMW M4 Competition? Awesome choice, guys! The M4 Competition is already a beast, but a new exhaust system can really unleash its full potential, adding power, improving sound, and even enhancing the car's aesthetics. But with so many options out there, it can be a bit overwhelming. This guide will walk you through everything you need to know to make the right decision for your ride. Let's dive in!

Why Upgrade Your 2020 BMW M4 Competition Exhaust?

Before we get into specific brands and types, let's talk about why you should even bother upgrading your exhaust in the first place. The stock exhaust on the M4 Competition is decent, sure, but it's designed with compromises in mind. Automakers have to consider things like noise regulations, emissions standards, and cost. That means there's definitely room for improvement when it comes to performance and sound. Upgrading your exhaust can offer a multitude of benefits:

• Increased Horsepower and Torque: A less restrictive exhaust system allows the engine to breathe more easily, leading to more power. Aftermarket exhausts are designed to reduce backpressure, which can significantly improve the engine's efficiency. This is because the engine doesn't have to work as hard to expel exhaust gases, allowing it to produce more power. The gains can be especially noticeable in the mid-range, providing better acceleration and responsiveness. Moreover, optimized exhaust flow can also contribute to better fuel efficiency under normal driving conditions, although the temptation to enjoy the enhanced sound might negate those savings!
• Enhanced Sound: Let's be honest, this is a big one for most of us. The stock M4 Competition exhaust sounds good, but an aftermarket exhaust can transform the car's sound into something truly special. You can choose from a variety of tones, from a deep, aggressive rumble to a high-pitched, exotic scream. The sound of your exhaust is a key part of the driving experience, adding excitement and character to every drive. Whether you prefer a subtle enhancement or a dramatic transformation, there's an exhaust system out there to match your taste.
• Weight Reduction: Many aftermarket exhaust systems are made from lighter materials like stainless steel or titanium, which can reduce the overall weight of the car. Reducing weight improves handling, acceleration, and braking performance. While the weight savings from an exhaust system alone might not be massive, every little bit helps, especially in a performance-oriented car like the M4 Competition. The reduced weight can also improve the car's overall balance, making it more nimble and responsive on the road or track.
• Improved Aesthetics: An aftermarket exhaust system can add a touch of style to the rear of your M4 Competition. Many systems feature polished tips or unique designs that can enhance the car's overall appearance. The visual upgrade can be subtle or dramatic, depending on the style of the exhaust system. Some enthusiasts opt for systems with carbon fiber tips or aggressive designs that make a bold statement. Regardless of your preference, an aftermarket exhaust can be a great way to personalize your car and make it stand out from the crowd.

Types of Exhaust Systems for Your 2020 BMW M4 Competition

Okay, so you're sold on the idea of upgrading. Now, let's look at the different types of exhaust systems available for your M4 Competition. Knowing the differences between these types is crucial for making an informed decision.

• Axle-Back Exhaust: This is the simplest and most affordable type of exhaust upgrade. It replaces the section of the exhaust system from the rear axle to the exhaust tips. Axle-back systems primarily focus on improving sound and aesthetics. They generally offer modest performance gains. Installation is usually straightforward, making it a popular choice for those new to exhaust modifications. The sound enhancement can range from a subtle increase in volume to a more aggressive tone, depending on the specific system. Axle-back exhausts are a great starting point for those looking to improve the sound and appearance of their M4 Competition without breaking the bank.
• Cat-Back Exhaust: A cat-back exhaust replaces the entire exhaust system from the catalytic converters to the exhaust tips. This type of system offers a better balance of performance, sound, and aesthetics compared to axle-back systems. Cat-back systems often feature larger diameter piping and less restrictive mufflers, which can improve exhaust flow and increase horsepower. The installation is a bit more involved than an axle-back, but it's still manageable for experienced DIYers or professional installers. The sound enhancement is more significant, providing a deeper and more aggressive tone. Cat-back exhausts are a popular choice for those looking for a noticeable improvement in performance and sound without going to the extreme of a full turbo-back system.
• Turbo-Back Exhaust: This is the most comprehensive and expensive type of exhaust upgrade. It replaces the entire exhaust system from the turbocharger to the exhaust tips, including the downpipes. Turbo-back systems offer the greatest potential for performance gains, as they eliminate the most restrictive parts of the exhaust system. They often feature high-flow catalytic converters or even catless downpipes, which further improve exhaust flow. The installation is the most complex, often requiring specialized tools and expertise. The sound enhancement is the most dramatic, providing a very aggressive and powerful tone. Turbo-back exhausts are typically chosen by enthusiasts who are serious about maximizing the performance of their M4 Competition and are willing to invest the time and money to do it right.

Top Exhaust Brands for the 2020 BMW M4 Competition

Alright, let's get down to the nitty-gritty and talk about some of the best exhaust brands for your 2020 M4 Competition. These brands are known for their quality, performance, and sound.

• Akrapovič: Akrapovič is a Slovenian manufacturer renowned for its high-performance exhaust systems. They are a top-tier choice for BMW M4 Competition owners looking for the ultimate in quality and performance. Their exhausts are crafted from premium materials like titanium and stainless steel, ensuring durability and weight reduction. Akrapovič exhausts are known for their exceptional sound quality, producing a distinctive and aggressive tone that enhances the driving experience. They offer both cat-back and turbo-back systems for the M4 Competition, providing options for various levels of performance enhancement. Akrapovič exhausts are often considered the gold standard in the aftermarket exhaust industry, and their products are meticulously engineered to deliver optimal performance and sound. While their products come at a premium price, the investment is worthwhile for enthusiasts seeking the best possible upgrade for their M4 Competition.
• Eisenmann: Eisenmann is a German manufacturer with a long history of producing high-quality exhaust systems for BMWs. Their exhausts are known for their deep, aggressive sound and excellent build quality. Eisenmann offers a range of exhaust options for the M4 Competition, including axle-back and cat-back systems. Their exhausts are hand-built in Germany and are designed to provide optimal performance and sound. Eisenmann exhausts are a popular choice among BMW enthusiasts who appreciate the brand's heritage and commitment to quality. Their products are rigorously tested to ensure they meet the highest standards of performance and durability. The Eisenmann exhaust systems are designed to enhance the driving experience by providing a more engaging and visceral sound, while also improving the overall performance of the vehicle. Whether you're looking for a subtle upgrade or a more aggressive transformation, Eisenmann has an exhaust system to suit your needs.
• Remus: Remus is an Austrian manufacturer that produces a wide range of exhaust systems for various vehicles, including the BMW M4 Competition. Remus exhausts are known for their innovative designs and high-quality construction. They offer a variety of exhaust options for the M4 Competition, including axle-back and cat-back systems, with different tip styles and sound levels to choose from. Remus exhausts are designed to improve exhaust flow and increase horsepower, while also providing a more aggressive sound. Their products are tested extensively to ensure they meet the highest standards of performance and durability. Remus exhausts are a popular choice for those looking for a balance of performance, sound, and style. The company's commitment to innovation and quality has made them a leading brand in the aftermarket exhaust industry. Whether you're looking for a subtle enhancement or a more dramatic transformation, Remus has an exhaust system to suit your needs.
• Armytrix: Armytrix is a relatively newer brand that has quickly gained popularity for its aggressive and innovative exhaust systems. Their exhausts are known for their valvetronic systems, which allow you to control the exhaust sound with a remote. Armytrix offers a range of exhaust options for the M4 Competition, including cat-back and turbo-back systems. Their exhausts are made from high-quality stainless steel and feature TIG-welded construction. Armytrix exhausts are designed to provide maximum performance and sound, and their valvetronic systems allow you to customize the exhaust note to your liking. The ability to switch between a quiet and aggressive sound makes Armytrix exhausts a popular choice for those who want versatility. The company's focus on innovation and technology has made them a standout brand in the aftermarket exhaust industry. Whether you're looking for a system that can be both tame and wild, Armytrix has an exhaust system to meet your needs.

Factors to Consider When Choosing an Exhaust

Before you pull the trigger on that shiny new exhaust, let's consider a few important factors.

• Budget: Exhaust systems can range in price from a few hundred dollars to several thousand. Determine how much you're willing to spend before you start shopping.
• Sound: Consider the sound you're looking for. Do you want a subtle increase in volume, or a loud, aggressive roar? Listen to sound clips online to get an idea of what different exhausts sound like.
• Performance: If you're primarily concerned with performance gains, look for a system that is designed to maximize exhaust flow. Turbo-back systems generally offer the best performance gains.
• Installation: Consider whether you're comfortable installing the exhaust yourself, or if you'll need to take it to a professional. Axle-back systems are typically the easiest to install, while turbo-back systems are the most complex.
• Legality: Be aware of local noise regulations. Some areas have restrictions on how loud your exhaust can be.

Installation Tips

So, you've got your new exhaust. Now what? Here are a few tips to make the installation process smoother.

• Read the Instructions: This might seem obvious, but it's important to read the instructions carefully before you start. This will help you understand the process and avoid making mistakes.
• Gather Your Tools: Make sure you have all the necessary tools before you start. This might include wrenches, sockets, a torque wrench, and penetrating oil.
• Use Penetrating Oil: Spray penetrating oil on any rusty bolts or fasteners before you try to remove them. This will help loosen them and prevent them from breaking.
• Use a Torque Wrench: When tightening bolts, use a torque wrench to ensure that you're tightening them to the correct specification. This will help prevent leaks and damage.
• Get Help: If you're not comfortable installing the exhaust yourself, don't be afraid to ask for help from a friend or a professional.

Conclusion

Upgrading the exhaust on your 2020 BMW M4 Competition is a fantastic way to improve its performance, sound, and aesthetics. By considering the factors outlined in this guide, you can make an informed decision and choose the perfect exhaust system for your ride. Happy modding, guys!