I figure they did some modification. ;DA. Jay;1832833 said:"2J intake manifold" -video description.
EDIT: Wait, is there not a difference between them? Also, OP, how did your brother do that? Because this was my understanding: http://www.supramania.com/forums/sh...s-Is-Why-A-JZ-Manifold-Cannot-Be-Used-On-A-7M