Ok, I've seen a few folks on here do the grille mesh insert modification and I've been wanting to do it for a while now. I finally bought the material but unfortunately I live in a apartment complex and don't have the room to take my grille off and such here. I can however take it to my buddies house and do it there but I want to get everything preped before heading over there like cutting the individual inserts out of the large mesh pieces that I bought. My question is, for anyone who has done this, what are the measurements of the inserts that I need to cut out? Any help would be much appreciated! Thanks!