I'll try and post a sound clip of mine so you can see if it's the same. If it is, is nothing to worry about. Check out this youtube clip - 'n54 turbo sounds 2'
I remember being pretty worried when I first heard mine and thought it was turbo. Lots of net searching and dealer checks. General consensus is some turbos make more noise than others, but not a precursor to turbo failure. Maybe I've just been fed BS.
I figured if turbos fail, it's warranty anyway. Just take it easy with the boost until oil temps are above 80.
Anyone know how to post a sound clip?
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