[bimmerg30]

Hey guys,
Looking for a bit of insight from the community.

I’ve got a BMW G30 520d xDrive (2019) with 87,000 km.
Car has been on a Stage 1 remap since 81,000 km — added roughly +30 HP boost. No other mods.

Lately, I’ve been noticing a whooshing/air sound during lightly acceleration when engine is cold. It fades as the engine warms up, no longer hearing it after a few minutes.

I’ve attached a short video — can anyone tell if this sounds like it’s coming from the turbo? Is it a boost leak?
Link:

Appreciate any thoughts — especially if anyone with a similar setup has noticed the same thing.