I have a strange resonating sound near the top left side of the engine bay that only happens exactly at 2300 RPMs. I can't find anything loose, it goes away as quickly as it starts, unless I actually stay at 2300 RPMS. It's kind of loud and annoying.
I might try and get a video of it later if no one else has ever had this issue, but does anyone have any ideals?
Rear balance shaft is out, front is bypassed. No actual vibrations can be felt. Engine is really smooth and runs perfect.
Car is driving fantastic, and I have this stupid issue.