Stage III Engine Management System

Stage III EMS RetroTek Speed’s Stage III EMS (Engine Management System) sets a new standard for performance and ease of installation coupled to the most compact size of any aftermarket EFI EMS. Powerful and compact, this system can be used for full control of port or throttle body fuel injection systems. Featuring adaptive learning capabilities, onboard wide-band control and integrated 2.5-bar Map sensor, the Stage III EMS has the power and performance of systems three times its cost. Comes complete with dashboard software for easy analysis and custom tuning and a step-by-step installation / user manual.