For the intakes; 2UZ phaser is too different in the way it functions (there appears to be a middle timing position)...versus the 3UZ/1UZ VVT phaser rest in full retarded position and the oil pressure pushes it to advance. Physically they do fit though (the camshaft is different lengths, but with the phaser, it is the same length. This is VVT, not sure about non-VVT
The exhaust are interchangeable