I have a '07 C4S. Since day-1, I have noticed the whooshing sound when at high rev and before shifting (almost the sound of a very weak VOB). Is it the variable valve timing?

It does not bother me, but I am just wondering what this is. And no, my car is not turbo.

 

115 views .... And I am still waiting if someone also has wondered about the 'fake BOV sound'.

 

Can you get a video of it?