i believe you have to remove the whole front bumper to swap the grilles..... but if you wait a couple of weeks - i am having produced a clip on trim ring that makes the standard grille look very much like a burner grille and it takes 30 seconds to fit. PM me for photos if you wish.
Sorry Tempest..........I jumped the gun & bought the part from Kia Northampton. For the £56 they quoted me, I told them I wanted to have a look at it first. I couldnt believe the price!
But here it is:
It came with fitting instructions which suggested removing the clips & bolts from the area around the grille to allow access..........perhaps if you have hands like an octapus, but I couldnt manage it. I went ahead & took the whole bumper off. Not difficult. Once I had the bumper on the ground, swapping the grill took a few minutes.