Make a big increase in power and sound with Ford Racing's ProCal Calibration Tool, Cold Spark Plug Set and Cold Air Intake. With just colder plugs, a tune and cold air intake the Focus ST is able to experience an increase of 90 peak torque at 2800 RPM on 93 octane fuel. There is a significant torque increase all the way up to 4200 RPM. Also, plenty of horsepower is gained throughout the RPM range making overall driving more exciting. Also, revised sound symposer software and calibration creates a more natural engine sound.
Fits 2015-2017 Mustang GT; Features exclusive no-lift shift strategy and enhanced throttle response; Ford Performance calibrations feature exclusive Ford proprietary software and engineering; Ford Performance calibrations are 50 state legal with CARB EO; Calibrations available for manual and automatic transmission; Allows gear ratio changes up to 4.09:1; Automatic calibrations feature optimized performance shift schedule; • Premium fuel; 91 octane or higher; is required

Fitment:
Ford Mustang GT 2015
Ford Mustang GT 2016
Ford Mustang GT 2017
Ford Mustang GT 50 Years Limited Edition 2015
Ford Mustang GT Premium 2015
Ford Mustang GT Premium 2016
Ford Mustang GT Premium 2017