I just swapped out my stock chrome side grills with the (very pricey) carbon fiber optional grills.
It was extremely easy to do. It took no longer than 5 mins to replace. They look perfect as I added a carbon fiber front lip.
IND has a very short vid that shows how-to. It was even easier than what they showed.
So, if there are others that are thinking about doing this cosmetic upgrade - just do it!