They’re wonderful, glorious and the envy of just about every motoring enthusiast who doesn’t own one. By now we all know that the Porsche 911 is an icon. It’s the car that manufacturers benchmark when building their own super cars and it’s the one that always finishes at the top of the pack. However sometimes performance isn’t the only thing about the 911 that people love. Sometimes it’s that wonderful noise that bellows from the exhaust tips of those flat-6 engines that gives the 911 life.