Apparantly the DMS map is undetectable, and should your car go in for a service & they overwrite the map then they will come out & redo it again FOC
In the case of the Range rover, it does not affect the RR warranty at all as they dont know its there, and my feedback from other owners is that RR dealers are quite happy to cover the vehicle under warranty even knowing its been DMS'd
In fact oddly previous to this vehicle I had a RR sport that only had one previous owner and that was Farnells MD, turned out that had been mapped, I noticed it seemed very quick, so called the sales guy & he told me 'oh yeah the MD had it remapped with DMS'
So generally it would appear that its ok all round to have it done, wether you tell the insurance co or not is another matter...I wouldnt as its undectable anyway and I couldnt see it been a factor in a crash anyway
It makes such a big diff to the RR that it needs to be done on that car, as I said the problem I have is justifying such an expense on the golf, when I dont really think I would get the benefit from the extra performance....as you say Kev if I wanted a faster car I would of bought a differant one not a GTD. The GTD's performance is absolutley fine for what I use the car for
