I've never had a car with a turbo. Between about 1700-2100 RPM, with the windows open, I hear a distinct sound like air being rapidly sucked into a drinking straw.

Is that the turbo spooling up? It seems to go away after 2200 RPM.

 

it's the sound of women dropping their panties as you drive by them.

 

Have to keep the windows rolled up or they all try and jump in