Hello, This looks to be an amazing site for the HD RAM owner. I recently picked up a 2021 RAM 3500 Limited Longhorn DRW 8ft bed, Crew Cab, 6.7l diesel HO, I was hoping to find information here about adding a second alternator, under-hood LED lighting (which i find odd as my 2017 Laramie had this and its a few models lower), trailer hitch options that wont rust or break, and any possible noticeable performance upgrades.