Thank you to all above. You have answered many questions for me.

I have been looking at ProTune II from S&S and feel a bit intimidated. I need to do more studies on it to understand how it works. What is the difference between the S&S software and if I buy one of the dialogistic devices on Amazon?


2014 3 wheeler
1987 Plus 8
2000 Harley Wideglide
1970 Corvette
1951 Vincent Black Shadow