Turbocharged engines produce a few sounds that are almost impossible to miss. There's the whistle as the revs climb, the whoosh when you lift off the throttle, and sometimes that distinctive flutter coming from the intake. To anyone unfamiliar with turbocharged cars, it can sound like something is leaking—or like the engine is about to launch a small spacecraft.
But most of those noises are simply the sound of air moving through a turbocharged engine.