Nothing over 90hp on the tune to keep the transmission alive and watch your right foot, even at 90hp I can slip/limp mine, leave the stock intake alone and run the Donaldson paper filter. I plan on Rare parts idler arm, Rare parts pitman arm, Rare parts tie rod ends, super steer idler shaft (cheaper than the rare parts model and appears to the same) 4" exhaust, reroute the PCV or install a catch can, my intercooler has a fair amount of oil residue in the bottom of it due to the PCV....
Do a lots of inspections, electrical and mechanical, to date I have about 20 items since 2013 that could have cost me money and 2 of them serious money had I not done so. Also, when you grease the truck check the idler shaft, it is located in a position where it is overlooked due the location of the grease fitting so grease it right away.
Bad part of it, I did not make a list of items I found and repaired so I could post it for others....:nail: