26th Mar 13 Hiya Andrew, PeterCitroen C5 from last week. Very pleased with ‘red’ box. Defo increase in mpg from 48 to 54mpg at 80mph ish. Car is much smoother, power waiting for a blip of the throttle at 70+. Moved box to ‘C’ setting for trip home last week, awesome. Maybe try D & E soon but power is as much as I want to handle in current conditions. All good thanks Peter