AEM EV Fuel Injection Pressure Regulator – Adj Fuel Press Reg. EST, MON to FRI. Adj Fuel Press Reg. The proof is in every product we make. We saw a need for making stand-alone programmable engine management both affordable and available to more racers 15 years ago, and introduced the first plug & play EMS that uses a factory wiring harness and sensors. But as vehicle technology has advanced so has the need for more powerful and capable engine management. The Infinity ECU-it delivers all of the features of high-end Motorsports engine management systems on state-of-the-art hardware. It’s powerful enough for professional race teams and affordable enough for privateer racers. AEM was the first company to incorporate a gauge interface with a wideband air/fuel controller, and we have innovated in this category again with the Wideband Failsafe Device-a combined Wideband controller unit and boost/vacuum gauge that can save your engine if it runs lean. In 2007, we introduced affordable water/methanol injection for forced induction vehicles. In the spirit of innovation, we have redesigned this system with improved components and it can now be used on forced induction racecars at all boost levels or high compression naturally aspirated vehicles. And there’s more. From 320 lph fuel pumps and data loggers for roughly half the cost of the competition’s offerings, to ignition solutions that can save you hundreds of dollars by eliminating additional hardware to deliver the spark energy you need, we have and will continue to develop and make reliable products that help you achieve your goals.