Does this have 3 tunes already programmed so that I just download the one I want into the ECU or do I have flexability to change values? I would prefer pre-programmed tunes until I learn more about the motors and have the proper gauges. Anyone use this that can give a description of the results or is there a product review forum? Thanks, mark

 

They come with one tune "diablo tune" and then you can modify it's parameters as you wish, or you can modify the factory tune. good luck.