2011 CTT

I have this sound I can't put my finger on I thought it was my blow off valves, replaced them, its coming from the lower passenger side engine area as far as I can tell while I'm driving,

Seems to be only underload or slight boost, quite loud when it happens, almost like a loud lifter while driving by idling it sounds like a bird.

 

Another video from inside the car with the window down while driving beside a curb

 

Just bumping this up, I checked all the pulleys they seem pretty smooth, no play.

 

Loose exhaust bolt was the issue