The EGR port is M24 x 1.5. Supposedly the oil pan plug for a 2004 vw touareg v8 is M24 x 1.5, though I haven't verified that.
The air suction is either M30 or M32 but I don't know the thread pitch. If I had to guess I would say it's M32 x 1.5. I think the oil filler plug from a manual transmission might actually fit in that port. Dorman still lists these parts: