I want to get gauges to monitor transmission temperature and I would like to have instant mileage readout. I like the Edge Insight CTS but am curious if the Edge Evolution Gas CTS is worth the extra money. I found that the Evolution now supports 1998 and up Dodge trucks, the way it looks to me is that it just combines the Edge Insight with the Edge EvoHT tuner. Does anybody have Edge products on a 2nd Gen 5.9 Magnum. Have you seen any MPG increases in the economy mode?