What's the best way to increase horsepower on a BMW M3?

I'm looking to boost the power of my BMW M3 without sacrificing its reliability. What options do I have?

One of the most effective ways to increase horsepower on a BMW M3 is by adding a cold air intake and a performance exhaust system. This will provide better airflow and allow the engine to breathe more efficiently.

If you're interested in a more aggressive approach, you can also consider installing a performance chip or tuning the engine. This will require some additional maintenance and may affect your warranty, so be sure to do your research and choose a reputable company.