Here's another video of the turbo boost guage. I don't know how accurate it is, but it seems to show a lack of pressure build up. There's definitely less power than there should be on the throttle. Noise is coming from the passenger side turbo. I checked every heatshield I could and they all seemed fastened correctly. The noise wasn't coming from the wastegates on either side.
Do you think the turbo could be failing? Any idea on what replacement cost is? If I need to do that plus the cam phasers all out of warranty...I may start looking at buying something else.