Ford tuning-specialist Mountune has released a power upgrade set for the focus ST hot hatch, which aims to keep the usability of the basic vehicle while offering a considerable increase in power as well as torque.
Called the m365 upgrade kit, it comprises a specially designed, three-inch high-flow exhaust downpipe, a sports catalyst as well as an upgraded exhaust gas particulate filter which, integrated with a new high-flow air filter as well as an ECU recalibration, add 84bhp as well as 140Nm of torque to the basic car’s figures. 

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The ECU tuning makes utilize of Moutune’s SMARTflash mobile app, which enables individuals to switch the engine map between three power levels as well as an anti-theft setting. In the ECU’s many potent m365 mode, the full prospective of the tuning set is unlocked, with a overall output of 360bhp as well as 560Nm.
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The car’s upgraded exhaust system has been developed to decrease back-pressure while preserving acceptable emissions levels, as well as the set has been developed to create an even spread of torque over the entire rev range, to preserve the drivability of the basic focus ST. 
The SMARTflash software application is the most costly aspect of the kit, priced at £689, with the high-performance downpipe as well as gas particulate filter costing £575 as well as £525 respectively. The high-flow air filter is an extra £49.50, bringing the overall expense of the set to £1,838.50.
Mountune already offers a 325bhp m330 upgrade bundle for the focus ST, which includes the upgraded air filter as well as SMARTflash software. To upgrade to m365 spec, existing clients can purchase the new downpipe as well as gas particulate filter, as well as a £99 SMARTflash upgrade.
Commenting on the new m365 kit, creator of Mountune David Mountain, said: “We are pleased to introduce our newest upgrade set for the much-loved mk4 focus ST. Ford has done a fantastic task with the stock ST as well as what we have finished with this m365 upgrade set is to completely optimise the calibration with our recently engineered low-back pressure exhaust hardware – this implies maximum performance is offered throughout the rev-range as well as it’s now a seriously quick car, which is likewise fantastic fun to drive, too.”
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