Your engine feels calm at a stoplight because a hidden idle system keeps fuel, air, and spark in balance. That quiet ...

The AEM EMS has come a long way since the introduction of the Series 1 version that debuted more than a decade ago to the tuner market. In the summer of 2009, AEM released their next-generation ...

CAN-bus. We've all heard the term before, but just what does it really mean? Today's new vehicles are engineered using a multiplexed wiring system known as CAN-bus. The on-board communications ...

Once upon a time an engine needed three things to run: fuel, air, and fire. That's what carbs, coils, and distributors are for. Modern EFI engines still need these three elements, but they use ...

Don't let failing oxygen sensors compromise your engine's performance. O2 sensors are critical to emissions control on your car, SUV or truck. As the name implies, the O2 sensor (also called an ...

Back when smog control devices first started to appear on cars and light trucks the consensus in the enthusiast community was that performance vehicles were going to be targeted. By the mid-'70s Big ...