AEM p/n# 30-0300

One of the fastest reacting gauges on the market due to patented technology

Genuine Bosch AFR sensor (not a repackaged AEM gauge with a cheaper sensor, like with some other suppliers)

Compatible with DC 12-16V systems

52mm diameter and low profile front face makes for easy and discrete (where desired) fitments

0-5V analog output allows for data input into many ECUs (including MS43).