It's proll'y about 55 Lbs, and it ships in a big box with lot's of packing material. Protect both ends of each flange with cardboard "corners" to reduce its tendency to rip its way out of the box.
I just shipped one last month. 45 lbs and DHL was the best rate at approx. $40 across the country. I double wrapped the intake in cardboard before boxing it and it went fine.