How do I tune it?
A laptop or PC is required for tuning the ECM, but the software comes with numerous baseline calibrations that are sorted by engine size and horsepower, which allows the user to get started with a calibration that comes from a similar application to his own, thus gaining him precious time that is normally wasted trying to build a calibration from scratch. They also offer DFI tuning classes/seminars nationwide.

How much?
Prices range from $2,249.99 to $2,999.99 on Plug-and-Play kits, and $2,649.99 to $5,199.99 on Engine Builder kits.


AEM Power
What packages do they offer?
AEM offers three different types of engine management systems. Series 1 and Series 2 Plug-and-Play Systems are made up of just under 100 part numbers which are engineered for specific applications and use the OEM factory harness and replace the factory ECU. The Universal System is used with a complete engine harness (sold separately) that comes complete with a mini fuse and relay box. This system requires a complete custom wiring harness and is typically found in full-blown race vehicles or hard-core street machines.

Easiest kit?
Carb to electronic engine management can be a big jump, so AEM introduced several drop-in-style kits using their Engine Position Module (EPM). This unit takes the place of the factory distributor on any small- or big-block Chevy or Ford, and provides the EMS with a clean cam and crank signal. Combine that with the Universal Engine Harness, sensors, and gauges, and you've got a complete transition from carburetion to full stand-alone engine management.

Best for racers?
While all of the AEM engine management systems share the same or very similar features and come fully enabled, the biggest difference between systems would be that some come with peak-and-hold injector drivers, and some come with internal wideband controllers. The bottom line is that every AEM system is capable of controlling and meeting the demands of a race vehicle and the tuner can simply turn off and hide the features not needed to control their particular application. Additionally, there is never any additional charge for enabling a feature, and software upgrades are free from the website,

What do you get?
The Universal System is a complete engine management system that can control fuel, ignition, boost, automatic idle controllers, fuel table auto mapping, programmable traction control, onboard 512kb data logger, up to 10 cylinder sequential fuel injection, 10 independent peak-and-hold injector drivers, direct drive ignition feature, on-board wide-band UEGO controller, six general-purpose outputs, seven definable switch inputs, electronic boost control, soft-cut rev limiters, two-step launch control, wet or dry nitrous control, definable knock control, full idle control, four EGT inputs with fuel control, 16/32 hybrid high-speed processor, to name a few.

What options are available?
AEM offers a full range of digital and analog (needle type) gauges that all offer two major features over most of the other gauges available. All gauges come with interchangeable bezels (black and silver) and changeable faceplates (black or white and several channel ranges, water temp, oil temp, and trans temp all in one part number) and all gauges provide a 0-5V output signal that can output the gauge information to a data logger or back into an EMS. They also offer wideband gauges that share all the same features as the existing gauge offering, in-line wideband controllers, boost solenoids, a full range of temperature and pressure sensors, as well as a line of pencil coils and Digital CDI ignition boxes.