Klaus - Everything sounds good, but there is only one thing from stopping me from ordering one right now, the display. Is there any chance that we can convince you to make a larger display to read off of one of the outputs? I can use one for my Haltech input, but I would have to have the laptop fired up for that. Even if it was a non-encased LCD with 3 digits (and a decimal, of course) that was 1.75" x .75" it would be perfect to sit in a gauge pod, and just making a cover for it would make it appear clean (which I'm sure most people can do, but just not the electronics side of it).
Also, is there anything wrong with mounting this permanently in the car? (in the downpipe after the turbo 6-8") I would think since it's an OEM sensor for VW that it should last at least 100k on unleaded fuel... right?
And lastly... any chance of a group buy if we can get 5 people together around here that want one? I realize it couldn't be much due to profit margins, but it doesn't hurt to ask.