Originally Posted by Hydrazine

Midz350,

It is a modified HR manifold. Similar to how the MREV2 was done but in this case, it requires significant modification to allow it to even fit onto the VHR engine.

Nissan did not want this manifold to be swapped onto the VHR engine so they made a series of deliberate design alterations between the two to make it impossible to swap them.

Hence the CNC modifications, hoses, fittings, new bolts and top plate.