Hey everyone....I'm new to the diesel world. Just got a 2011 Dodge Ram 2500. Has a 2" leveling kit on it (was already on truck). I just put 20" wheels running Nitto Terra Graplers 305x55R20 and a Bully Dog Triple Dog Tuner in. Can already see the improvement in all areas with the tuner. About to put a Flowmaster exhaust system and an Airaid Cold Air Intake on it. Saying that, I love the diesel engine....so much that I will never buy another gas powered truck again, however I do own a Ram 1500 w/5.7 Hemi. Completely sold on the diesel.