I know the question has been asked hundreds of times but theres alot of differing info. Seems to me that I have these options Revo - hard remap with over powering results ? CIAC - some good & bad comments with smooth overall upgrade (can't find dealers though? Chip n spin - in London, good comments ? Prices range from £300 - £500, is there that much difference in the remappping? and yes I understand the "you get what you pay for comments" I also understand the "we can keep the cost high cos of reputation" With a 1.9tdi company car, I am obviously not a speed freak (so don't want a wheel spin happy F1 remap) just want some more smooth power through the low/mid gears. Reason I ask question for west london is that obviously I would like the after sales back up to be not far away. Any advise welcome, sorry for the waffle.