Took mine off, no damage. Was pretty easy and should be safe as long as you don't yank on it. Surround the
badge with painters tape (stuck lightly, don't need to press it down). Grab 2 rubber wedges, jam em in either side. Use fishing line to saw slowly, and work the wedges in as you go. When you hit the pins, rotate the wedges down and use the corners to reach the area in the middle of the pins. It's pretty easy if you mark out where the pins are, they're roughly at the top right of the 'K' in Kia, and the Top and bottom left of the 'A'
The big problem is the front
badge has 3 pins. It creates a triangle of space that you can't saw away with fishing line, and if you don't saw it away, that's a LOT of adhesive that you're just ripping off. MAKE SURE TO USE THE WEDGES TO GET THE ADHESIVE BETWEEN THE PINS OR YOU'LL HAVE A BAD TIME. The rear only has 2 pins, so it's not nearly as bad. Just a small strip of adhesive in the middle.
I didn't use heat, just sat it out in the sun for an hour before removing them. I used
goo-gone to remove the adhesive, and had no lasting damage, though I did make sure to wipe up immediately after, so it only stayed on the adhesive and didn't drip down onto the car. Make sure you get the right kind of
goo-gone though, the hardcore stuff might get between the paint and the body and eat at the paint from behind.
My only problem is that the adhesive on the new front
badge was super thin, and the new
badge didn't match the contour of the front, so the edges of the new
badge wouldn't stay down. Fixed that by buying some VHB double sided foam tape, and setting it on the back of the
badge on top of the existing adhesive. That gave me some wiggle room for the contour, and it's been rock solid since then.
Edit: Some MSPAINT diagrams to explain, hopefully.
Here's where the pins are in relation to the KIA logo. Mark them off on the
badge so you know where to stop sawing.
View attachment 13479
Saw towards the pins with fishing line, push the wedges in as you saw. When you're done sawing and wedging, it will look like this.
View attachment 13480
Now, you're not done. I think this is where people are messing up. If you peel it here, there's a TON of adhesive left! Either use another wedge, or rotate the left and right wedge to cut out the sections below.
View attachment 13481
Once you're here, peel very, very slowly. I put my fingers behind the wedges and just applied pressure to them until the
badge lifted.
That should do it. Now get the adhesive off, that's the fun part...