How do I improve my Audi A6 engine's performance?

I have been noticing a decrease in power and acceleration in my Audi A6 lately. What steps can I take to improve my engine's performance?

One way to improve your engine's performance is to regularly clean and replace your air filter. This will ensure that your engine is getting enough air to operate efficiently. Additionally, using a high-quality fuel and performing regular oil changes can also help improve performance.

You can also consider upgrading your Audi A6's exhaust system. A high-performance exhaust can help improve engine power and increase fuel efficiency. Just be sure to choose an exhaust that is compatible with your vehicle.