a D2 grille on my D5?
 

I've just bought on ebay a grille to make my 2007 D5 look a bit newer (it's got the bigger badge). However, I note that half of the grille is "blocked", which I understand means it's from the 1.6 eco car to reduce wind resistance.
Should that mean I shouldn't put it on my car or won't it make a difference really?