Hmm I guess I'll have to have a good think about what I want to do then.
Thanks for the help though fellas.
Any of you know how long the warranty is on the rear light units?
Many of us have had remaps, and with the more modern Bosch ecu's as well. To date I have never had one detected by the main dealers, and on one car I never took off the map when it went in for a service either. So I think, unless they get wind of something its well worth the risk.