So i'm thinking about doing the same on the B8 but first of all is it easy & a straight swap? I'd like to lose the chrome around the grill itself, although i'm unsure whether to go to black rings or not.

A quick read up says the S4 & RS4 are different so i'll need a n RS4 "style" grill rather than original.
If it's easy enough then what parts do i need, bearing in mind I have parking sensors on the front of the car. Guessing i'll need the grill, plate mount & some sort of different fitment for my parking sensors? Also as per the pic on my B5 i'll be having shortened plates again so may want to modify the plate mount I think.
Thanks,
Russ