P11GT, I think that nismo grill will not fit your car.
It is design for the type of grill on the G20, with only one big hole that covers practically from light to light. Your hood have the 2 holes separated, so it can not fit unless you modified the hood and cut some of it, wich I don't recomend.
However, I think Luke got some nismo grill for a hood like yours, he had a thread on clasifieds some weeks ago, because he got them wrong. I don't know if he still has it.