After a second look I thought I would point out that white Blazer ^^ has the bumper mounted below the chrome grill 'lip'. The factory bumper fit 'in' that lip. I cut mine along the bottom and removed the lip but left the frame part.
I did this when I was fitting my winch into the bumper, with that new design you may wan to check if a low profile winch is recomended, mine is not low profile.
Mine mounts a bit higher than the white K5's and keep in mind you will have to cut off your 'fangs' with the newer style..I cut mine off before I got the bumper so...
Anyway just thought I would share...