he modded it. it's not a straight swap. he cut the mesh off and fixed it to the chrome outer from his S3 grille.
as a tip, the RS4 grille is big enough to do the same mod, but it's matt black rather than gloss. however it's also noticably cheaper. if you want the effect then that'll be a better way to do it. if you really want gloss then just spray it.
hope i've saved you some cash