Originally Posted by TheWeatherman

Since we have minimal sound-deadening material around the car, this is completely normal. When you let out/engage your clutch, you put parts of the driveline in motion, even when in neutral. The moving/whirring of the parts is what you hear. This is completely normal in MT cars, but ours you can just hear a bit better. Don't worry, everything's working the way it should. Mine makes the noise too.