HP Tuners is a company that specializes in automotive tuning software and hardware. Their products allow car enthusiasts and professionals to modify the performance of vehicles by adjusting engine parameters. This can lead to improved horsepower, torque, and fuel efficiency. The main product offered by HP Tuners is the VCM Suite, which includes tools for reading and writing vehicle calibration files. Users can also access a wide range of vehicle data and diagnostics, making it easier to optimize performance and troubleshoot issues. This software is compatible with many makes and models, enhancing its versatility in the automotive tuning market.