d16y7 to a d16y5

[suspendedhatch]

You need the whole head. Intake manifold, exhaust manifold, cat converter etc. (although the DX exhaust manifold will bolt up). Your DX doesn't have EGR but the Y5 does. You'll most likely need an HX specific O2 sensor. You'll need to run some wires to the ECU. If your DX came with 13 inch rims, you could use the VX rims, but I think the 14 inch HX rims would look much more natural with your chassis.

If my post seems indefinite that's only because I'm careful with any information if I haven't done it myself.