10th Jul 08 Hi Andrew, Just to let you know I installed the Tuning box within 5 minutes with No ECU warning lights on the dashboard what so ever. I took the car for a 80 mile run (mainly on Dual cartridge way) sitting on about 70mph. To my amazement the Car Trip Computer reported 58.5mpg. I was previously getting about 50mpg(ish) on the very same journey. The response & and acceleration Is just like driving a new Car. I have read lots of reports regarding these tuning boxes but I did not think they would be this good. Question for you … Am I better off leaving the settings alone on the Box or can I try pushing the car more by changing the setting to a higher level ? Thanks Again …. Dean