What to Consider When Upgrading the Exhaust on a BMW 4 Series?

The stock exhaust on the BMW 4 Series is known to be restrictive and can limit the performance potential of the car. What factors should I consider when upgrading the exhaust system to ensure optimal performance and sound?

When upgrading the exhaust on your BMW 4 Series, there are a few key factors to consider. First, you'll want to determine your performance goals and choose an exhaust system that will help you achieve them. Next, look for an exhaust that is made from high-quality materials, such as stainless steel, for durability and longevity. It's also important to consider the sound level – do you want a subtle upgrade or a more aggressive and louder exhaust? Lastly, be prepared to make additional modifications, such as a tune, to fully optimize the performance gains from the new exhaust.