Just as an FYI.. I have a 06 A4 B7. I have a warrenty that i didnt want to void, but wanted increased power and preformance. I put in a REVO chip and a Forge DV. Both work very well together and the power and torque are night and day from stock! It puts out about 250hp and 267torque. I woudl definately recommend the DV to go witht he chip, otherwise you will prob blow the stock one out after about 3 months and see a significant drop in power. I also talked to the tuning shop where i bought the REVO chip from and asked them if they could recommend a dealership that is mod friendly. Turns out a bunch of them came from an Audi dealership, and they have a lot of friend that still work there. They send eachother business, which works out for me cause they just overlook my chip and DV. So i would ask around and feel out the dealerships and the tuning shops and see what people say. Good luck.