Hey All - new here but m excited to get back into a RAM. Had a 2005 Laramie Quad cab with the 5.7L a long time ago and loved it. Just got back into a RAM with a 2016 2500, 4x4 Quad Cab Big Horn. Any way, I was looking fro an auxilliary fuel tank for longer towing range and saw on a couple of forums that they couldn't find anything. I found a 52 gallon Mopar tank to fit my 2016 on the Summit site for $447 and some change. Thoight some might be interested.