Bought a 2015 GMC 1500 4x4 with a 4.3 in early June. So far I have removed the front air dam, added a TruXedo Lo-Pro QT tonneau cover, AVS vent visors and a 2.5 RC leveling kit. Zone 1.5bl, Airraid MIT with AEM Dryflow filter ordered and should be arriving any day now. More mods to come as I continue to plan and research the direction I want to go.