Most supercars nowadays feature butterfly valves in the exhaust system to mute their roars until high rpms. However, removing the valves is relatively simple and the following Ferrari F12 Berlinetta owner has done just that!
[youtube]https://www.youtube.com/watch?v=E4O9emVLinA[/youtube]
Recently filmed around Monte Carlo’s Casino Square, there’s no questioning the fact that this F12 Berlinetta now emits a much louder burble at low revs than the standard car!
