2nd May 12 Andrew, I just wanted to get back to you with an update on how my Audi A3 2.0 TDI is working after installing the CRDT tuning box. I am very pleased with the performance of my auto. I have experienced smoother power transfer to the wheels and a noted increase in performance, the car feels more like a petrol vehicle. I will continue to make adjustments to the maps trying to acheve the balance between power and fuel economy. Thank you for your help with my purchase. John S USA