Ford Fiesta ST Mountune 230 review - pictures

Mountune's latest MR230 setup adds even more horsepower, bringing the total up to 227bhp.

These upgrades cost £2,295 and take around seven hours to fit at a Mountune or Ford 'PRO' dealership.

The upgraded Fiesta ST sprints from 0-62mph in just 5.9 seconds.

The six-speed manual gearbox is unchanged from the standard ST.

The ST is one of the most usable everyday hot hatches around, and the Mountune upgrades don't change that.

A respectable 280-litre boot makes this car eminently practical.

The Mountune springs make turn-in almost impossibly sharp.

We'd stick to the standard suspension set-up to avoid the car being unbearably firm.

The only real problem with the Moutune upgrades to the Ford Fiesta ST is the cost - and invalidation of the Ford warranty.