The Greddy E-Manage Ultimate Components was engineered to preserve the best features of the original e-manage while advancing new innovations in piggyback engine control management. In addition to standard airflow-based adjustments, the Ultimate version includes new and upgraded features. Included is a PC-based Ultimate Support Tool software CD, with an easy-to-use parameter set-up, tab menu format and speedy USB communication. Ultimate has improved direct map control for adding and subtracting fuel and ignition. The Ultimate has the ability to switch between 2 preset tuning maps (i.e. Street or Race) via externally mounted toggle switches.