Hi, I am new to this forum, I guess this topic has already been covered before. I have a few questions regarding chip tuning or remapping, are they he same thing or different? I have enquired at my local MB garage about the Brabus chip, but got a quote for £1650.00, which seems a bit steep. I contacted someone who would do remapping of the CPU, when I asked how it might affect my warranty he said it was un-detectable. The car is about 6 months old, E220 auto estate. It's a little bit sluggish compared to my previous car. I was not too sure about it being un-detectable, so I called another re-mapper and he said he would not recommend it for a nearly new car as if there were any engine problems that would be the first place that MB would look. So I have some confusing advice. Can anyone shed some light? Any suggestions gratefully accepted.