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.

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AEM Serial Data Stream Gauge
AEM Serial Data Stream Gauge
$199.95
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The AEM Serial Data Stream Gauge simultaneously monitors 19 channels of info from your Programmable EMS. You control everything: the MIN/MAX values, warning alarms, color, and more. Standard 52mm housing. 1-year warranty.

AEM ECU Extension Harness
AEM ECU Extension Harness
$119.90

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.

AEM Plug and Play EMS
AEM Plug and Play EMS
$999.00

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.