30th May 13 Well these guy’s are top people, fully recommend, I spent the morning with Andy up at their workshop trying various maps and settings and road testing until the car was as good as it was going to get. End result is a Mercedes 350 cdi estate that’s as quick as the C63 AMG and returns yes 40+ mpg easily. Power delivery is just perfect in any gear but the torque is dramatically increased to the point traction control has to intervene. Proberly the best Diesel tuning box fitted for years, cheers Andy and well done to DTUK, regards John Darley Automotive.