- 1 of 1
With an excellent reputation for quality performance parts including cold air intakes and air filters, it's easy to see why so many tuners put their faith in AEM for their electronics, too. As you tune and improve your car it's important to keep an eye on your pressures - especially temperature, air, fuel and oil - with AEM manufacturing some of the most stylish gauges around. After all, if you're going to improve your performance you might as well improve the styling too! AEM electronic components like the popular AEM wideband air/fuel ratio gauge features a digital display and an LED needle that changes colour as the ratio changes making this the simplest gauge you'll ever read.