Hello, 6 months ago I had my V50, 1,8l, Bj 2006 equipped with a Prins-VSI system at 50,000km. Of course with Flashlube-because one should spare the valves. I drive a lot but only around 120 to 130 kmh. Now after 25,000km the valves are there and the engine runs restlessly and dies when load changes. the estimate of my friendly moose dealer should arrive at me in the next days. What does this cost? Do you have advice, to proceed? What about the blacklist of Prins, of which I have just read here? Should I just be annoyed about my bleakness, or can I share with anyone (except my wife) in the costs?