Hi all. Just bought my first ED. 15 laramie with air suspension and ram boxes. Loving it so far. Compared to my 3/4 & 1 ton 6.7's I've owned,this thing rides like a Cadillac. 83,000 miles on this bad boy but looks like it just came out of the dealer. So I said what the heck. 3 weeks later and I'm now rolling withe GDE offroad tune and full deletes. Love the added power and also the fuel savings is allready showing. Looking forward to the knowledge I will gain hear. Thanks!