What are the best performance upgrades for the BMW M3?

I want to improve the performance of my BMW M3. What are the best upgrades I can make to get the most out of my car?

There are several performance upgrades available for the BMW M3 that will greatly improve its performance. One of the first things you can do is upgrade the exhaust system. This will not only increase horsepower, but also give your car a more aggressive sound. Another great upgrade is a cold air intake, which will allow your engine to breathe easier and increase power. Finally, consider upgrading the engine tuning software to unleash the true potential of your BMW M3.