When mobile electronics installers do a massive 12V sound system for a customer (especially a younger customer), most shops will impart the wisdom learned from years of experience with noise ordinances and law enforcement: Keep the booming to the highway or parking-lot show-offs. Don’t crank the bass at 3:30 a.m., and wake up the neighborhood. The secondary benefit to this is to keep it stealthy when close to home. This makes the sound system less of a target for theft. In addition to sound systems, some shops will also install aftermarket exhaust systems for muscle cars or Harley-Davidsons. While enthusiasts find it appealing, it can annoy your neighbors. Many find the loud growl of a Mustang to be fun and exciting, but there are some who prefer a quieter purr.
Someone, in fact, called the cops on Ford engineer Steve von Foerster. The former head of vehicle engineering for Ford Motor Company wasn’t thrilled, but he understood why. On an otherwise peaceful morning in his suburban Detroit neighborhood, von Foerster had just backed a Shelby GT350 Mustang out of his driveway. As the Mustang’s V8 engine thundered, an annoyed neighbor set aside their coffee cup and dialed 911. Von Foerster had left before the officers arrived, and he didn’t end up with a ticket. Nor did he get angry. What he got was an idea for the new Mustang.