Thats my thought about the MAF but apparently there are some hd models that didnt come with MAF. It has a factory block off plug in the wiring harness. Havent tried a custom tune but that was my thought if I couldnt get the original predator tune back. I saw something about 100 HP tune before we got ...

I am working on a 2005 F350, production date 11/2004 with a 6.0L diesel and a 5r110w trans. It has 3.73 gears, 37x13.5R22LT Toyo MT Open Country tires. Its a 4x4 with stock turbo, stock injectors, 3” downpipe and 4” exhaust with muffler only. This truck has a K and N cold air intake and filter but ...