Engine Management System (EMS)

Give your auto a total brain transplant with an engine management system. Engine management systems, or EMS, completely replace your stock on board computer. With an electronic EMS, you can customize everything from spark timing to NOS delivery. Read 1 engine management system (ems) reviews, with an average rating of 4.50 out of 5 stars, to help determine which engine management system (ems) are right for you.

Select your vehicle

AEM Plug and Play EMS

AEM Plug and Play EMS
$999.95

Replace your factory ECU with a fully-loaded control box! The AEM Plug & Play Engine Management System puts virtually every engine setting at your fingertips. And, this EMS interfaces with Windows for downloads and updates. 1-year warranty.

AEM ECU Extension Harness

AEM ECU Extension Harness
$119.95 each
(1)

Tune, troubleshoot, add or remove ancillary electronic devices without slicing and splicing your vehicle’s wiring harness. The AEM ECU Extension Harness lets you harness your ride’s power potential without all the hassle. 1-year warranty.

Engine Management Systems (EMS) Reviews
Check out this recent AEM ECU Extension Harness customer review: Tiffany D from Leechburg, PA says "The unit is well built. I used this unit to install a performance chip that required splicing into the ECU wiring. I spliced into this unit instead then plugged it in between the stock ECU wiring and the ECU. It installed without any problems. Wiring is solid and not issues with connections."