19th Aug 12 Hi Andrew, the Red Power Box has overcome the issues I was having with my Vito 109 CDI. Installation was straight forward, although a Vito motor runs longitudinally not transversely, as depicted in the installation notes. Setting 7 worked suitably, although the exhaust smells like the motor is running slightly “rich”, No matter, I’d prefer “rich” to “lean”. The motor runs smoother, and, runs quieter (this I do not understand). Driveability is much improved, and I’d agree with the claim of 20 % increase in torque. Hill ascents which used to trouble it (and annoy me) are now no problem. It chews its way up on torque, in a higher gear. Very impressive improvement. The Vito is more relaxing to drive now that it does’t struggle. It’s now also possible to take off on flat surfaces in 2nd, and avoid using the very short 1st gear. No extra clutch required either with bypassing 1st. I’m still assessing fuel usage, but I doubt it’ll be any more, going by the “feel” of the motor. Thanks Andrew, best regards, Jonathan Black, Australia