no no no. It's the type of mesh material used. Look at this page here
http://www.customcargrills.com/products.asp?id=1 to see the differences.
Below is a pic of the regular mesh and the XXL mesh.
XXL and Flat:
Good guy to deal with to. One of the few to actually make products for the alero when no one else would. (carbon fiber hood, emblems, oil caps, pullies, etc.) :thumbsup: