Not everyone loves the sound of a V-8 engine’s exhaust note first thing in the morning, which is why the 2018 Ford Mustang GT‘s optional active exhaust system comes equipped with a Quiet operating mode.
As in other cars equipped with active exhaust systems, the 2018 Mustang GT’s optional pipes are able to adjust the amount of noise released from its exhaust pipes courtesy of valves that open and close as operating modes and throttle input dictates. In addition to Quiet mode, the Mustang GT’s active exhaust system can also be placed in Normal, Sport, and Track modes.

In its loudest setting, the Mustang GT’s active exhaust lets out more than 80 decibels of unadulterated V-8 fury at startup, about the same as your average garbage disposal. Quiet mode holds back the raucousness and limits the 460-hp 5.0-liter V-8’s roar to just 72 decibels at startup. That’s equal to the amount of noise that enters an automatic-transmission-equipped Honda Fit’s interior at 70 mph. While plenty of active exhaust systems offer a quieter operating mode, the Mustang GT’s active exhaust separates itself from the herd courtesy of its Quiet Start function. With Quiet Start, owners of Mustang GTs equipped with active exhaust can schedule when their pony car will start in Quiet mode. For example, if you happen to leave for work while your neighbors are sleeping, you can set your Mustang to start in Quiet mode during early-morning hours.

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