4th May 10 The Audi has been owned for more than five years now, so I have got to know the characteristics of the engine and its performance very well. We have driven through Scotland and Wales on numerous occasions, and have enjoyed the torquey motor and sharp handling. (Regular returns of 4550 mpg have been achieved). We had been considering the installation of a chip upgrade or similar for some time, and did the usual web research into this. Results from forums and experiences from friends convinced us enough to purchase a digital tuning box. After some hunting around for a supplier, we came across David Dunstan from Cornwall. After a telephone conversation with him, we ordered the box, and 24 hrs later we were on our way to Cornwall to have the box fitted. The trip to Cornwall is around 100 miles from our base, so we thought this would be a fair test for mpg. We set the trip, and keeping to the speed limit, the Audi returned 53.3 mpg. David fitted the DTUK box in around 10 minutesno messy wiring or chopping into the loom, just plug and play. After a road test, we set off back to Devon. The first noticeable difference was the throttle responseA light touch on the throttle and you could feel the car wanting to accelerate, lots more torque and no black smoke. Resisting the urge to explore this increase in power and torque further, we set the trip once more to test the possible difference in mpg. Again keeping to the speed limit, and driving in the same style as on the way down we achieved 60.5 mpg! ( never achieved before in five years of owning the vehicle ) A Scotch trip was planned for the following day, and we were keen to find out more about the increased performance. On the plus side Fantastic throttle response. Power when you need it right off the bottom. No black smoke. Significant increase in mpg ( 59 mpg average on the 900 mile Scotch round trip ) If you want some fun, the motor will now pull longer and harder through the rev range. On the minus side Nothing as yet.