An mp215
https://www.mountuneusa.com/mountune-Fiesta-ST-MP215-Performance-Upgrade-p/2364-215-aa.htm is an airbox, inlet hose, and calibrated ECU tune that bumps the horsepower from 197 to (nominally 215, actually 213?). It keeps your Ford Warranty (36000 mile) intact when purchased from Ford or mountune and installed by an ASE mechanic, then registered with Ford. The cost of the kit is $1000 but there are sales nearly every major holiday. ...... This tune LOCKS your ECU and cannot be removed except by Ford themselves, and the mtune codes to one car and one car only, ever.
A Cobb AccesPort (AP) has multiple calibrations that are switchable (on the fly even!) and can be reset to factory then transferred to another car. Unlike the mountune, it removes the horsepower restrictions the Ford imposes on 1st and 2nd gears (to prevent torque steer? as drivetrain protection?). ... but is not CARB approved and may.. strong emphasis on MAY, void your warranty.
Mountune uses the Cobb Access Port hardware but with their own calibration. .. An AccessPort can also be purchased from mountune with custom calibrations and they will for a period of time (60 days?) allow you to send your data back to them and "Randy" will do a custom tune based on data collected using your fuel and whatever equipment you have (had) installed) including but not limited to intercooler, downpipe, exhaust sytem, and intakes.....