Tuning software is a type of application used to optimize the performance of vehicles, particularly those with internal combustion engines. It allows users to adjust various parameters, such as fuel mixture, ignition timing, and boost pressure, to enhance power output and efficiency. This software is often used by automotive enthusiasts and professionals to customize their vehicles for better performance or specific driving conditions. Many tuning software programs are compatible with ECUs (Engine Control Units) and can be used with OBD-II (On-Board Diagnostics) systems. Users typically connect their vehicle to a computer or a handheld device to upload new settings. Popular brands of tuning software include HP Tuners and Cobb Tuning, which provide user-friendly interfaces for both beginners and experienced tuners.