I've seen lots of mails on this forum about Turbo's and notice that everyone talks about the whistling noise as you step on the gas. I have a 1.8T Sport Quattro. My car has never made the whistling noise, regardless of speed, engine revs, gear. I always notice that whenever I am out of the car and a turbo charged audi passes me it makes the noise. Can any one you guys with the same car tell me what yours does or not?