Just replaced my TechEdge Wideband, after 4 years of hard, faithful service with a AEM UGEO 30-4100 Gauge Type Wideband controller. I also replaced my oil return line for my turbo to fix some routing issues. The other one had been rubbing on the downpipe, and had melted the rubber inside to the point where oil was leaking out. I also got a fire sleeve for the new oil return line too.