On some days the sound is more noticeable, but there is definitely a metallic rattle at 2 - 2.5K RPM. It stops when I'm off the gas and once I hit 2.6K RPM.
The wastegate rattle seems to be an issue on deceleration, I haven't see any threads where rattle during acceleration was an issue.
Any clue what it might be?
No error codes except one knock sensor code that appeared a few months back and hasn't come back (just checked yesterday).