I have an SCT 3015 for 6.7's. At the time it was only written for 2011-2012 but should work fine for 2013 and 14 also. Has the competition tuning up to 200hp. I got really good mileage on the highest tune. Around 21.6 on the highway.
Looking for $700 shipped obo. Located in Northern NV
Looking for $700 shipped obo. Located in Northern NV