As the name suggests, the MR230 upgrade delivers a performance uplift to 230PS at 5500rpm. With the kit installed, the 0-60mph time drops to 5.9 seconds, a full 1-second improvement over the standard model and in-gear and midrange acceleration is improved upon even more substantially thanks to the 340Nm readily on hand.
For customers running the market-leading MP215 upgrade, the MR230 delivers a whole lot more of the same torque-related characteristics, but with a noticeably stronger top-end, and for those with a standard Fiesta ST, the change in performance is understandably, dramatic.
With the MR230 the base hardware used in the MP kit is retained, in this with instance the induction kit, to enable an easier and less expensive transition to MR level performance.
The Mountune MR230 package also consists of:
All hardware can be added in a modular fashion except the downpipe, which is recommended to be installed together with the MR230 calibration.
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.