Hi mate,
Yeah, the quoted figures are 276 bhp and 620 nm quoted and from the improvement i believe it. Obviously there is no way of knowing for sure without rolling roading it. The tech was full of praise for BMW's and said they had worked on many e70's now without any complaints. The map is stealth and BMW cannot detect it during service etc. If the car's software needs updating then BMW would reset the upgrade but DMS reinsate it again. If the car happens to have any problems that can be directly linked to the upgrade then DMS offer to cover the work, but request that they look at the car prior to BMW. Oh and it is still in the warranty term. I will keep hold of this car for the next year or so and chop it in for the face lift sd in the next couple of years. I know a guy with a sd that DMS have done and it is a monster.... 340 bhp and 700 odd nm? It is a beast! Hope this is some help to you.

Take it easy....

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TMM