Which is the best exhaust for the BMW M3?

I'm looking to upgrade my BMW M3's exhaust system. There are so many options in the market, which one would you recommend for the best performance and sound?

In my experience, the Eisenmann exhaust is the top choice for the BMW M3. It provides the best combination of performance and sound.

I would recommend the Akrapovic exhaust for your BMW M3. It is a well-known brand in the automotive industry and has been proven to provide excellent performance and sound.

For a more affordable option, the Borla exhaust is a great choice. It may not have the same level of performance as the Eisenmann or Akrapovic, but it still provides a noticeable improvement over the stock exhaust.