On the backside of the grill , there is a little pin hole for you to push with a nail or something. It will let you push on the bowtie so you can get something behind the edge of the emblem to start working it off. I used a thick plastic knife that wouldn't scratch the grill and could help cut through the double sided tape holding it to the grill.
Hope this helps. letting the sun heat soak the emblem will help in getting it off too.