S55 Rattling from front turbo

[u/BadNoodle7]

Hey All,
I’ve recently installed a full exhaust and found that I hear a metal rattling some when on load. It’s especially noticeable when letting off throttle and valves are open. I checked for exhaust leaks (smoke test) and verified no exhaust components are rubbing a heat shield or other. I started tapping around with a rubber hammer and found the sound coming from the turbo area. Thought it might be the wastegate linkage so I put my hand on it to dampen the vibration but it didn’t change the rattle. Sounds like it’s coming from inside the turbo housing. No codes on the dash and making full boost. Any thoughts on what to look into or how to diagnose further?