That should help with some of the fans of loud engines—those who just like listening to their own car. But I can't shake the suspicion that a significant perce

That should help with some of the fans of loud engines—those who just like listening to their own car. But I can't shake the suspicion that a significant percentage of loudness fans want other people to listen to their vehicle (With bikers, this is explicitly acknowledged in the name of security: "Loud Pipes Save Lives").