So I'm having trouble removing my rear bumper. I unscrewed the two screws in both rear wheel wells. I got out the 3 bumper clips by the trunk, and the two undernearth the car, From what i can see its still clipped on to the quarter panel on the sides, but i have no idea how to unclip it. help! I have searched this.

 

There are clips between the quarter/bumper and under the taillights, just grab onto the wheel arch part of the bumper and pull towards the side and back of the car.

It does require a nice pull to release the clips, will sound like you broke something, but mine has held up fine after taking the bumper off multiple times.