Nothing makes you neighbors as angry as waking them up at 4 a.m. on a Saturday morning when you fire up your Mustang with the loud rumbly exhaust on your way to the local race track. I know this from the experience of owning six different Mustangs during my life with none of them left stock. Car guys and gals want a Mustang with loud rumbly

Source: Hot Hardware – 2018 Ford Mustang GT Gains Neighborly ‘Quiet Mode’ To Tame Unruly Exhaust