If your not looking to go wild go with a BHAF (Big honkin air filter) 4" Turbo back Exhaust then you could go with a small box like the edge ez (65hp box) and and a set of rv275 injectors (40 hp), you would have less than a 1000 in it if you bought everything new and could have as little as 500-600 if you get the chip and injectors used... Those are basic mods and will net you about 100 hp and 2-3mpg if you drive it reasonable...
Forgot to add you need a set of gauges with a fuel pressure gauge to make sure your lift pump is supplying at least 10psi of fuel pressure at wot if not you need a lift pump such as an airdog, raptor, or fass pump before it cost you a vp44...
Diablo Sport Power Puck
There is my list for bare minimum power but most efficient. I have Puck, Bhaf and Exhaust on 6spd dually and it pulls our 30ft horse trailer and makes 14mpg. I'm working on getting Ad and set of gauges, but I'm not paying for it......I'm just mechanic.
A forum community dedicated to Dodge Cummins Diesel truck owners and enthusiasts. Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more!