Mountune are back with a pair of warranty-friendly upgrade packages for the Focus ST and Fiesta ST.

Though hardly lacking in power and excitement, both the Fiesta and Focus are now being offered with the optional tuning package fresh out of the showroom or fitted to used cars by any of the 120 specialist Ford dealers.

Ford Mountune Upgrades

Ford Mountune Upgrades

The Fiesta ST gets a modest boost to 215PS (on overboost), a gain of 15PS, with torque up to 320Nm. The 0-62mph time drops from 6.9 to 6.7 seconds and 0.7 seconds is shaved from the fourth gear 31-62mph time, down to 5.7 seconds. Fitting the re-modelled air box base with secondary inlet duct, a high-flow filter element and ECU remap takes less than an hour and the Fiesta keeps its standard 3 year/60,000 mile Ford warranty.

On the Focus ST you can choose from a silver or black powder coat finish on the new cast alloy inlet duct and larger alloy intercooler. There’s also a high-flow filter element and ECU remap to complete the upgrade, with a resulting output of 275PS and 400Nm. The 0-62mph sprint now takes less than six seconds and in fourth gear the Focus will leap from 31mph to 62mph in 4.9 seconds, 0.8 seconds faster than before. Like the Fiesta, the standard Ford warranty is unaffected by the work.

Ford’s ST models have always been competitive on price and even with these upgrades the Fiesta and Focus give their rivals a hard time. The Fiesta can be upgraded for £599, and the result is an ST-2 model that’s still cheaper than the Renaultsport Clio 200 and Peugeot 208 GTI but beats both for power and torque. The Focus can be upgraded for £1,225 for the silver finish (£1,275 for black) and is still cheaper than a standard Mk7 Golf GTI, desipte having 55PS more.

Seems like no-brainer purchase to me.