The Pre-done Performance tunes in the Diablo Predator are adequate for stock or slightly modified (street legal bolt-ons) vehicles. The Predator is also equipped with End-User Adjustable Parameters that will allow the end-user the ability to tailor the tunes to their needs. Or, the Diablo Predator can receive custom tuning created by a professional tuning facility either locally or receive it over the internet and install it into the Diablo Predator with the Optional PC Interface Kit.