So I was just browsing for accessories for my CMAX...and came across this...

 

http://www.ebay.co.uk/itm/Performance-reMAP-OBDII-soft-Flash-Chip-FORD-FOCUS-FOCUS-ST-C-MAX-/170995393531?pt=UK_CarsParts_Vehicles_CarParts_SM&fits=Cars+Year%3A2005&hash=item27d01ea3fb

 

I wonder how well this would actually work... it seems in essence a "tuning box" that you connect via OBDII?