This is the new and improved HKS EVC. It has improved boost stability for maintaining pressure at high RPM's. What does that mean? Increased top end power. Additional features are: warning feature for overboost, positive lit LCD display, peak hold, dual boost mode settings, analog and digital boost monitoring, data lock and more. Along with monitoring boost pressure, two additional vehicle vitals can be monitored: throttle position, engine RPM or vehicle speed.