2003 GMC Envoy Engine Monitors

If you have a custom tune, exhaust, intake, or any other performance upgrades, a performance monitor is an essential add-on for your vehicle. Performance monitors offer a wide array of digital gauges to monitor a massive selection of engine performance parameters, such as EGR, boost pressure, transmission temperatures, data logs, and many, many more. You put a lot of money into your engine, and you want to make sure it's running at peak performance. Monitors are ideal to gauge where the limitations are in your current system, and where your next upgrade or preventative maintenance needs to be.