How do I maintain the performance of my BMW M6 engine?

I've noticed a decrease in the performance of my BMW M6 engine recently. What can I do to maintain its performance?

First, make sure to regularly change the engine oil and oil filter. This is crucial for the performance and longevity of the engine. Additionally, check and replace the air filter if necessary. A clogged air filter can restrict airflow and decrease performance.

It's also important to keep an eye on your spark plugs. Over time, they can become worn out and affect the engine's performance. Consider replacing them if they are due for a change.