I am interested in data logging my cars and I was looking for opinions on what is best. I am not interested in chipping/flashing, more on the diagnostic side of things. I saw this product
http://www.auterraweb.com/dynoscan.html
and it looks like what I am interested in. I would like one that is universal so if I change cars to another manufacturer I can still use it. Are there any other similar products out there? Am I barking up the wrong tree? Any thoughts would be appreciated.