Hey guys, got my first duramax in January of this year, got a 2012 4x4 LT 2500 HD Silverado. Haven't done anything to it yet but am definitely looking forward to it! It has a leveling kit on it and some off road tires but that's it. New headlights and tail lights are on order. Looking to do the exhaust on it but don't exactly know what I need to do, this is my first diesel truck.