This is ENGINE sound, not to be confused with exhaust tone.
They do the same thing in the 5.0 Mustang so you can hear the intake "woosh" inside of the car.
You think its silly, but would you rather sit in a car and hear nothing? Sure you can strap on a fart cannon and hear your own farts, but that's less exciting than hearing the perfect resonance of an engine screaming at 6k RPM.
2011 SES 5spd #006 >> SR #213
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