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Sound
Engineers found the standard Mustang GT's exhaust already provided ample performance within legal noise limits. On the Boss, they concentrated on tuning the sound to provide a unique experience, Ford said.

For that, an extra pair of exhaust pipes were added. They come out just ahead of the rear wheels. While they don't carry much of the car's exhaust, they transmit a lot of its sound.

Metal discs inside the extra pipes tune and soften the sound to meet legal requirements. The discs are easily removable, according to Ford, for track driving or other situations where noise regulations aren't an issue.

NEXT: Racing trim

Last updated August 16 2010: 1:57 PM ET
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