Ford is offering Fiesta ST customers the chance to buy performance upgrades for their cars through a choice of two special dealer-fit options.

The Mountune Performance Stage 1 package will retail at £1,435 (plus fitting) and consists of a high-flow air induction system, a performance exhaust system and re-calibration of the 2.0-litre Duratec ST engine to produce 165PS.

The more powerful Mountune Performance Stage 2 package will cost £1,838 (plus fitting) and adds new camshafts and valve springs to the basic package to deliver 185PS.

Developed by Ford Team RS in a new association with Roush Technologies Ltd, which owns the Mountune Racing motorsport brand, these packages will only be available at specialist Ford dealers. The upgrades have a minimum of 12 months/12,000 miles dealer warranty up to a maximum of three years/36,000miles.

The upgrade kits do not affect the vehicle warranty and will be available from the selected Ford Dealers from March 1st 2008.

Meanwhile Leicestershire based Ford dealer Archers of Ashby has produced a special edition Focus ST CR285

Developed and extensively tested in conjunction with Code:Red UK (formally Wolf UK), power and torque are significantly raised. Brakes and suspension have been uprated, too. Price is £18,850 on the road.

More info from Archers of Ashby on 01530 417724