The Mountune Performance upgrade for the Mk7 Fiesta ST will consist off a new calibration & airbox.
Obviously TUV approved, and keeping the standard Ford Warranty.

Power up to 212bhp + overboost to 224bhp
Torque up 10% - 328NM + overboost to 340NM-ish

0-62: 6.6 sec
145mph top speed

Package cost £600


only some of the above is true apparently