Personalize the look, sound, and performance of your BMW with one of our quality performance upgrade vendors. PKW Motorwerks is the leading BMW performance shop in the Plainfield/Naperville area. We supply and install everything from ECU upgrades to exhaust systems and even carbon fiber accent pieces.

Below, we have listed a handful of options that we recommend to get started with upgrading your BMW performance. Give us a call to talk about how to enhance your vehicle today!

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You can increase power through ECU tuning in a variety of ways. Most manufacturers leave some room in their tune. It could be due to not wanting to interfere with the mechanical limitations of the engine or it could be to meet emissions requirements. ECU tuning modifies the fuel and spark maps of the engine.



Like downpipes, upgrading the exhaust will eliminate the restrictive factory cats. Backpressure will be reduced and the result is more power. At idle, sound coming from the exhaust is subtle and slightly louder than stock which then transforms into a deep, distinct sound at open throttle.



The best way to get the most out of your engine is to upgrade your overworked and overheated factory intercooler. By keeping intake temperatures down, an upgraded intercooler can allow for higher horsepower gains while preventing heat soak, which is a common problem in factory parts. The result from upgrading is more power and reliability as well as less of a chance for pre-detonation and knock.

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By upgrading your downpipes, you are eliminating the restrictive catalytic converters of the factory downpipes and back pressure is reduced significantly. This results in faster spool, an increase in power and more aggressive sound from the exhaust.



Upgrade your factory intake with a performance intake kit featuring higher quality filters. This will increase flow in the mid to upper RPM range and introduce a more aggressive sound from the engine. Your vehicle can gain up to 20whp just by replacing the factory intake system.



Upgrading your vehicle’s entire suspension system is not necessary. However, there are some parts that may need to be replaced in order to get better handling and driving out of your vehicle. Some of the most common suspension parts are springs, shocks, struts, shock absorbers, and suspension support. Many car enthusiasts will upgrade with aftermarket or import parts in order to enhance the performance of their vehicle.



Your vehicle’s braking system was designed for normal, everyday driving at the stock performance of your engine. This means if you increase the engine’s power, you need to upgrade stopping power to accommodate. The hotter your brakes get, the less power they have to stop, and they could develop brake fade.


These are just a few of the BMW tuning and BMW upgrade items to get you started. There are lots of different BMW upgrades and BMW modifications we can do for your car. Don’t hesitate to reach out and speak with our BMW performance tuning specialist for what will work best for your vehicle.

Speak With Our BMW Performance Specialist Today!


With a fully trained crew of BMW tuning specialist, PKW Motorwerks has over 30 years of experience in German automotive technology, so rest assured, your BMW is in good hands when you choose us for your BMW performance tuning and BMW modifications.

We provide honest and reliable BMW upgrades, BMW performance tuning, and BMW modifications in the entire Chicagoland area. Our Plainfield location is conveniently located near Aurora, Naperville, Shorewood, Lisle, Downers Grove and the surrounding western Chicago suburbs.