The T4 Comprehensive Diagnostic System was designed by Land Rover and Omitec.  Other diagnostic systems try to imitate the T4, however the T4 is the only system designed, produced, and updated by Land Rover.  T4 provides compliance with the latest EU3 and OBDII emissions standards and also can be used to program your Land Rover to fit your needs.  This is the same system used by all Land Rover dealers on the planet.  There are functions on your Land Rover that can only be diagnosed and accessed by the T4.  If you are looking for a low cost alternative to dealership services, then we can help with your post-dealer repair and maintenance needs.