2021 Ram 3500 H.O.

^^^^And he said he’s already installed a dual disc clutch ..... so I’m kind of curious what steps would a person need to take to build a reliable, deleted, non smoking, tow unit? Say to get the truck to a USEABLE 400 RWHP. Cummins increases boost and lowers the compression ratio to add power.... Are those mods unnecessary if only adding 120 HP? (But again wanting to be able to use the power while towing) Is a new air to air and radiator necessary? I guess if all you have to do is swap out the exhaust and add a tuner it’s not terrible expensive.