TB = Throttle Body
Disconnect the Fuel lines, the EGR tube, the fat gray connector in the pic, the PCV tubes, the front spark plug wires, the throttle position sensor wire, the 2 small coolant lines, the ground wire for the metal part of the fuel rail, and the MAF sensor wire. Then unbolt the manifold and it should come right off.
The intake manifold
The fat gray plug I mentioned
With the manifold off
It sounds harder than it is. I don't remember the torque specs off the top of my head so I'd have to go look.