BMW M3/M4 Performance Aftermarket Parts Guide

The BMW M3 and M4 have long been regarded as some of the most iconic and powerful vehicles on the market. With their impressive performance, sleek design, and cutting-edge technology, it’s no surprise that these cars have a dedicated following of passionate fans. However, aftermarket performance parts are a must-have for those looking to elevate their driving experience to the next level. From suspension upgrades and exhaust systems to engine tuning and air intakes, the world of aftermarket parts offers endless possibilities for enhancing the performance and style of the BMW M3 and M4.

In this article, we’ll explore the top-performance aftermarket parts available for the BMW M3 and M4 and provide a comprehensive guide to help you choose the best upgrades for your vehicle. Whether you’re a seasoned car enthusiast or a newcomer to the world of aftermarket parts, this guide is a must-read for anyone looking to take their BMW M3 or M4 to the next level and unleash the full potential of these iconic vehicles.

Things You Should Know About Aftermarket Parts

These parts offer a range of benefits, including improved performance, and a more personalized driving experience. However, it’s important to note that not all aftermarket parts are created equal, and there are some risks involved with installing them on your BMW. 

One of the main benefits of aftermarket BMW parts is the ability to customize your vehicle to your specific needs and preferences. For example, you may choose to install a new exhaust system to improve your vehicle’s sound or upgrade your suspension for better handling. These upgrades can make a significant difference in the overall performance of your BMW and can enhance your driving experience. 

However, it’s important to be cautious when selecting aftermarket parts. Not all aftermarket parts are made to the same standards as OEM (original equipment manufacturer) parts, and some may not be compatible with your vehicle’s systems. Additionally, poorly designed or manufactured parts can cause significant damage to your BMW if not installed correctly. 

When shopping for aftermarket parts, it’s important to do your research and select parts from reputable manufacturers. Look for parts that are designed specifically for your BMW model and that have been tested for compatibility and performance.

Tuning Power Package

The Tuning Power Package includes a new software or engine control unit (ECU), and heat exchangers will result in improved acceleration and overall performance. 

One of the most notable changes you’ll notice after installing the Tuning Power Package is the increase in torque. The package offers a significant boost in torque, which translates to improved acceleration and a more responsive driving experience. A new exhaust system also produces an aggressive sound that’s sure to turn heads. If you’re looking to take your BMW M3 or M4 to the next level, the Tuning Power Package is a significant investment. With improved performance, enhanced sound, and a more enjoyable driving experience, you’ll wonder how you ever drove without it.

Engine Software

Engine software, also known as performance flash tuning software, can improve your vehicle’s performance by optimizing the engine’s fuel delivery and timing. When purchasing aftermarket engine software, it’s essential to choose a reputable vendor and select software that has been specifically designed for your BMW model. The software should be compatible with your vehicle’s existing systems and designed to work within the manufacturer’s specifications. 

One of the main benefits of aftermarket engine software is the increase in horsepower and torque it can provide. However, it’s important to note that installing aftermarket engine software can impact your vehicle’s warranty. If your vehicle is still under warranty, this is why some aftermarket companies offer a factory-matching warranty as well as extended warranties. 

BMW M3 and M4 owners can significantly enhance their vehicle’s performance by installing engine software. However, it’s crucial to select reliable, top-quality software and to consider any possible effects on your vehicle’s warranty. 

Intake & Air Filters

Aftermarket air intake and air filter upgrades can enhance the airflow of your BMW’s engine, which can lead to increased horsepower and torque, improved throttle response, and a more aggressive engine sound. When selecting an aftermarket air intake and air filter, it’s vital to opt for high-quality, reputable brands that have been tailored to your BMW model. Look for products that have been tested for compatibility and performance and come with a warranty to ensure their reliability.

One of the main benefits of an aftermarket air intake and air filter is the increase in airflow it can provide. The improved airflow can significantly increase horsepower and torque, making your BMW more powerful and responsive. Additionally, an upgraded air intake can improve the engine’s sound, giving your BMW a more aggressive and sporty tone.

An aftermarket air intake and air filter can be a great upgrade for BMW M3 and M4 owners looking to improve the performance and sound of their vehicles. However, choosing high-quality products is important and ensuring they are compatible with your vehicle’s existing systems is essential. With the right upgrades installed, you can enjoy a more powerful, responsive, and efficient driving experience in your BMW.

Exhaust

Installing an aftermarket exhaust on your BMW M3 or M4 allows you to experience a more aggressive exhaust note as well as very excellent exhaust tips. However, when contemplating buying an aftermarket exhaust, several factors must be considered to ensure that you make an informed decision.

It’s essential to choose an exhaust that has been specifically designed for your BMW model. Look for reputable brands that have been tested for compatibility and performance and that come with a warranty. It’s also essential to ensure the exhaust is legal in your jurisdiction and meets emissions standards. 

 An upgraded exhaust can also provide a more aggressive exhaust note, giving your BMW a sportier and more powerful sound. However, it’s important to note that installing an aftermarket exhaust can impact your vehicle’s warranty. If your vehicle is still under warranty, it’s recommended to consult with your dealer or manufacturer before making any modifications to your vehicle. Some aftermarket companies provide a factory matching warranty which takes this concern away.

An aftermarket exhaust can be an excellent upgrade for BMW M3 and M4 owners looking to improve the performance and sound of their vehicles. However, choosing high-quality products is essential and ensuring they are compatible with your vehicle’s existing systems is critical. With the right upgrades installed, you can enjoy a more exhilarating driving experience in your BMW.

Suspension & Coil Overs

There are numerous advantages to investing in aftermarket suspension and coil overs for your BMW M3 or M4, such as better handling, improved traction, and a sportier stance. These upgrades can significantly enhance your driving experience and give your vehicle a more dynamic and aggressive appearance. When considering purchasing an aftermarket suspension system, there are several factors to keep in mind. 

When selecting an aftermarket suspension system for your BMW M3 or M4, it’s essential to choose one that has been specifically designed for your vehicle model. Opt for reputable brands that have been tested for compatibility and performance and that come with a warranty. With a properly designed suspension system, you can experience improved handling and traction, reduced body roll, and enhanced stability, resulting in a more responsive and agile driving experience.

Additionally, an upgraded suspension can provide a more aggressive stance, giving your vehicle a sportier and more aggressive look. Coilovers are another popular upgrade for BMW M3 and M4 owners. Coil overs are adjustable suspension systems that allow you to fine-tune your vehicle’s ride height, damping, and spring rate. This can provide a more customized driving experience and allow you to dial in your suspension for optimal performance. However, it’s important to note that when installing an aftermarket suspension system you consider larger anti-roll bars and suspension link upgrades especially if  you are adding larger wheels and tires.

BMW M3 and M4 owners seeking to enhance their vehicle’s handling and stance can greatly benefit from installing an aftermarket suspension system or coil overs. However, choosing high-quality products is crucial and ensuring they are compatible with your vehicle’s existing systems is crucial. With the appropriate upgrades installed, you can enjoy a more dynamic, responsive, and sporty driving experience in your BMW.

Suspension Arms & Bushings

Aftermarket suspension arms and bushings can greatly enhance the performance of your BMW M3 or M4, offering numerous benefits such as improved handling, stability, and ride comfort. When considering purchasing these upgrades, it’s important to select parts designed specifically for your BMW model and from reputable brands tested for compatibility and performance. It’s also crucial to ensure that the parts are legal in your jurisdiction and meet safety standards.

One of the most significant advantages of aftermarket suspension arms and bushings is their improved handling and stability. These components are designed to reduce suspension flex and improve overall stability, resulting in a more agile and responsive BMW. Many aftermarket upgraded bushings can also increase noise, vibration, and harshness (NVH), providing a smoother ride. It’s important to pick a company that has spent the time to tune out additional NVH.

Additionally, aftermarket suspension arms and bushings often feature higher-quality materials that are designed to withstand the demands of aggressive driving, resulting in increased durability and longevity compared to OEM parts. However, it’s important to note that installing these upgrades can impact your vehicle’s warranty, so it’s recommended to consult with your dealer or manufacturer before making any modifications to your vehicle.

Investing in aftermarket suspension arms and bushings is a smart choice for BMW M3 and M4 owners who want to improve their vehicle’s handling and stability. Choosing high-quality, compatible products that will provide a more responsive, nimble, and comfortable driving experience is crucial.

Sway Bars

Upgrading the sway bars on your BMW M3 or M4 with aftermarket parts can provide a range of benefits, including improved handling, reduced body roll, and increased stability. When considering purchasing aftermarket sway bars, there are several factors to keep in mind.

When selecting aftermarket sway bars for your BMW M3 or M4, it’s crucial to opt for parts that have been tailored to your vehicle model. Choose reputable brands that have been tested for compatibility and performance and offer a warranty. It’s also essential to ensure that the sway bars comply with safety standards and are legal in your jurisdiction.

Aftermarket sway bars can provide several advantages for BMW M3 and M4 owners. They are designed to reduce body roll, improving overall stability and making your vehicle more responsive and agile on the road. The upgraded sway bars can also deliver a more balanced handling experience, enhancing traction, and reducing understeer or oversteer. Furthermore, aftermarket sway bars are typically made from superior quality materials that are more durable and can endure the demands of aggressive driving, resulting in a longer lifespan compared to OEM parts.

It’s crucial to keep in mind that installing aftermarket sway bars may impact your BMW M3 or M4’s warranty. Therefore, if your vehicle is still under warranty, it’s advisable to consult with your dealer or manufacturer before making any modifications to your car. That said, upgrading your sway bars with aftermarket parts can be an excellent investment for BMW M3 and M4 owners who want to enhance their vehicle’s handling and stability. However, selecting high-quality products compatible with your vehicle’s existing systems is essential to ensure a more responsive, agile, and stable driving experience.

Intercoolers/ Heat Exchangers

Intercoolers and heat exchangers are popular aftermarket upgrades for the BMW M3 and M4. These performance cars generate a lot of heat, especially during high-speed driving or track use, and the stock cooling system may not be sufficient to keep the engine and other components at safe operating temperatures. Upgrading to a larger or more efficient intercooler or heat exchanger can help to reduce the intake air temperature, improve engine power and torque, and prevent overheating issues.

Intercoolers are designed to cool down the hot compressed air from the turbocharger or supercharger before it enters the engine’s combustion chamber. The cooler and denser the air is, the more oxygen it contains, which can lead to higher horsepower and quicker acceleration. Aftermarket intercoolers are typically larger than the stock ones, with more cooling surface area and better airflow. Some intercoolers are also made from higher-quality materials, such as aluminum or carbon fiber, which can improve durability and reduce weight.

Heat exchangers, on the other hand, are designed to remove heat from the engine coolant, transmission fluid, or other fluids that circulate through the car’s cooling system. Upgrading to a larger or more efficient heat exchanger can help lower the overall temperature of these fluids, improving performance and reliability. Some aftermarket heat exchangers are designed to fit in the stock location, while others may require additional modifications or relocation.

When purchasing aftermarket intercoolers or heat exchangers for your BMW M3 or M4, choosing a reputable brand with a proven track record of quality and performance is important. You should also consider the size, design, and compatibility of the product, as well as the installation process and any additional modifications that may be required. With the right upgrades, you can unlock the full potential of your BMW’s engine and enjoy a more thrilling driving experience.

Street and Race Engines

Aftermarket upgrades for BMW M3 and M4 engines are quite popular among car enthusiasts looking to enhance their vehicles’ power and performance. These cars are already known for their powerful engines, but some enthusiasts may want to increase the horsepower and torque even further for street or track use. Opting for a street or race engine upgrade can result in substantial performance improvements, but selecting the right setup that suits your requirements and budget is crucial.

Street engines are designed for daily driving and occasional track use, providing a balance of power, reliability, and drivability. These engines typically feature upgraded components such as camshafts, pistons, connecting rods, and intake and exhaust systems. They may also be tuned for higher horsepower and torque but with a focus on maintaining good street manners and drivability. Street engines may be ideal for enthusiasts who want more power for spirited driving or occasional track days but still want a car that can be driven comfortably on the street.

Race engines, on the other hand, are designed for maximum performance on the track, with little regard for street drivability or longevity. These engines may feature high-performance components such as forged pistons and rods, aggressive camshafts, larger turbochargers or superchargers, and custom intake and exhaust systems. Race engines may also be tuned for maximum horsepower and torque, with little attention paid to fuel economy or emissions. Race engines may be ideal for enthusiasts who compete in sanctioned racing events, where every horsepower counts, but may not be suitable for street use due to noise, emissions, and reliability concerns.

If you’re planning to purchase a street or race engine for your BMW M3 or M4, it’s crucial to select a reputable supplier with a proven track record of delivering high-quality and high-performance products. Additionally, it’s essential to consider your intended use for the engine, your budget, and any other modifications that may be required to support the new setup. With the right engine upgrade, you can take your BMW to the next level of performance and enjoy an exhilarating driving experience, both on the street or track.

Aero / Bodywork / Engine / Interior Carbon Fiber

Enhancing the performance and aesthetics of your BMW M3 or M4 is a common objective for many car enthusiasts looking to purchase aftermarket accessories. Carbon fiber is a preferred choice among them as this lightweight and robust material can replace stock parts or add new ones to the vehicle, elevating its overall appearance and performance.

One area where carbon fiber is commonly used is in the aero or bodywork of the vehicle. Carbon fiber can be used to replace the stock hood, trunk, or spoiler, improving the vehicle’s appearance, reducing weight, and improving aerodynamics. In addition, carbon fiber can be used to add more aggressive-looking diffusers, splitters, and side skirts to the vehicle, which can further enhance its overall look.

Another area where carbon fiber can be used is in the engine bay. Carbon fiber engine covers and airboxes can add a sporty, high-performance look to the engine compartment while providing a weight reduction benefit. For those who want to add a touch of luxury to their M3 or M4, carbon fiber can also be used in the vehicle’s interior. Carbon fiber trim pieces, such as dashboards, door panels, and center consoles, can provide a high-end and custom look to the interior of the car.

If you’re looking to augment the appearance, performance, and luxury of your M3 or M4, carbon fiber is an excellent choice for aftermarket accessories. Nevertheless, it’s crucial to ensure that the carbon fiber parts you purchase are high quality and installed correctly to guarantee their safety and effectiveness.

Camber Adjusters

Camber adjusters are an essential aftermarket accessory for those looking to enhance the handling and performance of their BMW M3 or M4. Camber refers to the angle at which the wheels of the car are tilted inward or outward from the vertical axis, and adjusting the camber can significantly improve the car’s handling and stability.

Installing camber adjusters allows you to adjust the camber angle of the wheels, which can help optimize the tire contact patch with the road surface and improve cornering grip. By tilting the wheels inward or outward, you can also adjust the tire wear pattern, improving the tires’ longevity. Camber adjusters are especially useful for those who track their M3 or M4, as they can provide better handling and reduce body roll during high-speed cornering. However, they can also be beneficial for daily driving, improving stability and handling during sudden maneuvers and providing a sportier driving experience.

If you’re considering purchasing camber adjusters to enhance the handling and performance of your M3 or M4, it’s crucial to make sure that they’re compatible with your vehicle and installed correctly to ensure their safety and effectiveness. Moreover, it’s important to adjust the camber angle within the recommended range suitable for your specific driving conditions as excessive camber can cause uneven tire wear and reduce handling performance. Camber adjusters are an excellent investment for those who want to improve their vehicle’s handling and performance, particularly those who enjoy track driving. Nonetheless, as with any aftermarket accessory, it’s vital to ensure that they’re installed correctly and used within the recommended parameters to guarantee their safety and effectiveness.

Wheels

Upgrading the wheels and tires on your BMW M3 or M4 with aftermarket options can significantly enhance the vehicle’s appearance and performance. The correct set of wheels and tires can provide better handling, acceleration, and braking, as well as improve the overall aesthetics of the car. When purchasing aftermarket wheels for your M3 or M4, there are several factors to consider, including size, weight, material, and design. Choosing the right size is crucial, as it can affect the vehicle’s handling and performance.

The weight of the wheels is also an essential factor to consider. A lighter wheel can reduce unsprung weight and improve acceleration, handling and ride quality. The material of the wheels is another critical factor to consider. For example, aluminum cast wheels are lightweight and durable, while forged wheels are even more robust and more durable but can be more expensive. Carbon fiber wheels are also an option for those looking for the ultimate performance and lightweight, but they can be considerably more expensive.

The design of the wheels can also have a significant impact on the vehicle’s appearance. There are many options available, from classic spoke designs to modern and sleek designs. Choosing a design that complements the overall look and style of your M3 or M4 is essential. Overall, upgrading the wheels of your M3 or M4 with aftermarket options can be an excellent way to enhance the vehicle’s appearance and performance. However, choosing the right size and offset is crucial to ensure the best performance and aesthetics for your specific driving needs.

The BMW M3 and M4 are high-performance vehicles that can benefit significantly from aftermarket upgrades. From suspension and brakes to engine and wheels, there are numerous options available to enhance the vehicle’s performance and driving experience. However, when it comes to purchasing aftermarket parts, it’s crucial to choose reputable suppliers and ensure that the components are compatible with your specific vehicle and installed correctly. By selecting the right aftermarket parts and modifications, you can take your BMW M3 or M4 to the next level of performance and enjoy a more thrilling driving experience both on the street and on the track.