I have 2012 ram 1500 4x4 Laramie longhorn 5.7. Just hit 100,000 bought it at 79,000. Since I have done the following:
Borla exhaust (just muffler cut in)
Ingen cold air intake
spark plugs
Amsoil signature series every 10,000
Amsoil front and rear differential and torque converter all amsoil...