I don't like to post it because of all the crackdowns, but I am "deleted" with cat back exhaust, H&S on tow with transmission tuning, S&B intake. Intake was a necessity, salt took out the clamps and tore my intake. Our friends with identical rig and the 2012 high performance engine doesn't get as good mileage and is slightly down on pulling the hills compared to our 11. I am gentle on my truck, not looking at a race truck and do all my own maintenance. I am pretty much finished as far as the warranty goes and my state doesn't test diesels yet. Real world mileage, 11.5 to 13 towing to Savannah, GA, and several trips to Tenn. My unloaded mileage averages (hand calculated) 18-20 depending on conditions and traffic. Is it worth it, to me yes because I do all my own work. Money wise, not sure it is the best investment, may take me awhile to re-coup the cost of parts, but my oil is clean, sounds good and my turbo is clean when I change filters.
Skip & Patty
2013 Redwood 36RL
2015 Ram 3500 Laramie CC DRW 4x4 (Bertha)