Rattle above 5k rpm
 

So I just started getting a rattle/buzz sound above 5k rpm. Sounds like it's coming from inside the dash. Happens in all gears but not in neutral. It's more noticeable in lower gears, but I can't tell if that's because of wind noise.

Any ideas?

NM, should have spent more time researching. It's the rattling MT shifter issue that has a TSB out. Mods, you can delete this if you want. Thanks y'all!