We now have the HorsepowerFreaks Viper running on the AEM Engine Management System. It was a complete plug n play with the exception of our proprietary knock sensor kit. Here's a simple video of the car idling with the AEM. The Viper starts up perfect with very smooth idle. http://www.horsepowerforums.com/images/misc/viperaemidle.wmv We're going to publish more videos once we tune driveability and strap it down to our dynojet. One of goals will be to answer any questions you might have and to describe many of the options and capabilities that you'll have if you use this engine management system. Take care, Chris.