I had my a3 1.9tdi 105pd remapped last week and the difference is amazing. Before its was ok but not over fast, so i had it remapped and i have been told now it should be around 140hp, which i can believe as a 130hp golf tryed to race me the other day and my newly chipped a3 left him for dead!! I also thought the fuel consumption would go down but it has not affected it, if anything its doing slightly better! If anyone is thinking of having his done i would highly recommend it!