A couple weeks ago I posted a vid of some strange noises on cold starts and light-medium throttle driving. The conclusion is that it was normal with a catless dp and the sounds were coming from the waste gate. After some research on the BMW forums i've come to the conclusion that vacuum in the waste gate somehow got screwed up and I will be resetting it following this Kies Motorsports video
I'll do this on Monday ideally. I'll post back with results if this was in-fact the culprit. I could also just be dumb and these sounds are completely normal but as sounds normally are not picked up well on video, it does not do the atrocity of these noises justice.
If you guys have done this before please give suggestions/advice. Seems like it should be a 15 minute job!