AEM was founded in 1987 by John Concialdi (J.C.) and Bob Sullivan as a tuning performance shop catering to vintage automobiles and the latest trend in street racing modified imports. Located in Compton California, AEM was embedded in the tuner market from the very beginning. It was a matter of being in the right place, at the right time, with the right technical knowhow. Between J.C. and Sullivan, AEM had two important advantages. Technical engine knowledge and massive creativity fueled by an unbridled passion to make things go faster. And when it came to understanding the air flow through an engine, few had more experience than Concialdi, who had managed the R&D department for Weber Carburetors for North American aftermarket applications the previous 10 years. By 1993 when the shop relocated to Gardena California, AEM’s reputation as the modifier of choice had grown to the point that sometimes the business ran 24 hours a day in order to have cars ready for the next street race or sanctioned event.