What are some common issues with the BMW M2's turbocharger?

I have been experiencing a lack of power and unusual noises from my BMW M2's turbocharger. I'm concerned about potential damage and the cost of repairs. What could be causing these issues?

Excessive wear on the turbocharger's bearings can cause the symptoms you're experiencing. It's important to have it checked by a certified mechanic as soon as possible before any further damage occurs.

Your turbocharger's wastegate may be malfunctioning, causing a decrease in boost pressure and resulting in loss of power. Have a mechanic inspect and potentially replace the wastegate.