I have for sale a GDE hot tune. The pre epa compliant tune for ecodiesel. It has the high idle and engine brake option and set up for 3.92 gearing. This was installed in my 2018 Ram 1500. Worked great. My oil stayed cleaner than my jeep gasser. Sold the truck and no longer needed. Will also include 1 Mopar newest style fuel filter and 3 Hengst oil filters.