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Mountune engineers spent a great deal of time developing this kit to ensure that it delivers the optimum level of performance with the OE turbocharger, whilst maintaining the maximum possible reliability of the engine and transmission components.
Altered cam timing provides an improvement in power and also helps hold on to the torque higher up in the rev range. The end result is the docile, OE-like day-to-day driving experience you've come to expect from a Mountune calibration, which, at the depression of the throttle, spools into action, delivering a wave of torque that's difficult not to smile at, with an induction and exhaust note that's hard not to enjoy in equal measure!
As with any MR upgrade, your warranty may be affected as it does not benefit from the same exemption that the MP upgrades provide. However, the cat-back exhaust is covered by a limited lifetime warranty and Mountune’s standard 12-month / 12,000-mile warranty against manufacturing defects is applicable to the remaining hardware.
Pricing to the MR230 from the MP215 upgrade costs £2,595 fully fitted, including VAT at TC Harrison Ford Burton . The MR230 from a standard Ford Fiesta ST will set you back £2,995 including VAT.