Edelbrock's Pro-Flo EFI XT software offers easy-to-use, yet sophisticated tuning control with user-friendly pull down menus and screens. One of the most exciting features of Pro-Flo XT is the option of tuning with the included Edelbrock exclusive hand-held Calibration Module (for tuning without a laptop) or the option to laptop tune with the included software. Pro-Flo XT provides the best of both worlds for user-friendly EFI tuning! Base calibrations are included for common Chevy applications with more coming soon for Chrysler and Ford.