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The Ford Racing Power Pack 1 calibration package for 2015–2017 Mustang GT pairs a ProCal calibration tool with supporting components to raise power and revise engine sound. Market notes describe real-world torque and horsepower gains with a colder plug, calibration and cold air intake on compatible Focus ST setups; here the Mustang GT pack is positioned as a factory‑integrated calibration and hardware upgrade.
Ford Racing 2015-2017 Mustang GT Performance Calibration Power Pack 1
