AEM engineers products that outperform the competition, and create original product designs that revolutionize the industry. AEM pioneered the Cold Air Intake for sport compacts, invented the air bypass valve and V2 induction system, created the first hybrid intake systems for cars with engine swaps, created the first stand-alone programmable engine management system that uses a factory wiring harness, and were the first to introduce a gauge with a built-in wideband UEGO controller and gauge readout in one unit!