The Mountune Performance Fiesta ST engine upgrades are available in two power levels. These are designed specifically for installation by Ford Dealers who have the diagnostic equipment to reprogramme the Engine Control Unit with the appropriate calibration.
The Stage 1 (165PS) kit comprises of a new and unique stainless steel exhaust system, air intake and our own optimised engine calibration. This upgrade improves performance to 165PS at 6500rpm and to 200Nm of torque between 3500rpm and 5000rpm. Performance returns see the standard 0-60mph time drop by almost a second from 7.9secs to 7.1secs, with the 0-100mph time achieved in 21.0secs
The Stage 2 (185ps) kit features all of the components found in the Stage 1 (165ps) kit, and also includes specially developed camshafts and stronger valve springs. In addition, the ST185 includes a revised engine calibration.
The Stage 2 kit produces 185PS at 7000rpm and a peak torque of 200Nm at 4500 to 6000rpm. Performance returns see the 0-60mph time drop from 7.9secs to 7.0secs, with the 0-100mph time achieved in 17.2secs
The kits use common hardware meaning that it is possible to upgrade from Stage 1 to Stage 2 at a later date.
These upgrades do not affect your Vehicle Excise Duty (tax) banding as they are fitted after vehicle registration.
Mountune Performance have tested the upgrades on British B roads and on numerous laps of the famous Nürburgring Nordschleife.
The ST165 kit can be fitted to any model year of Fiesta ST, new or used, and have a minimum 12 months/12,000-mile warranty without affecting the vehicle warranty.
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