Engine Management Systems

GEMS has been designing and building competition engine management systems since 1985. Because of GEMS ongoing policy of developing products in response to the needs of its customers, and in many cases in close collaboration with its customers, the range of products available are now highly flexible and covers all engine management requirements.

All GEMS ECUs require GWv4 software for calibration

Standalone ECU's

EM80 Thumb

EM80

Advanced engine management system for up to 8 cylinders


 GDi80 Thumb

GDi80

Advanced engine management system for direct injection engines up to 4 cylinders


Plug n Play ECU's

simteklogo2

Simtek ECU

 Accessories

potbox sml

GEMS Potbox

Tuning accessory for use with GWv4 and GEMS ECUs