Originally Posted by woo1
You actually don't need any tools for this. They pop out easily, and without damage if you pull around the edges and pull one clip out at a time. I recently did mine and it worked perfectly. The dealerships just yank them straight out with one forceful pull. The total time to replace both kidneys was about 4 minutes. If they feel stuck, spray the clips with silicone and pull again. Easy!
FWIW, I can confim this as truth.
Working between the teeth just lightly pry the tabs with finger and pull out. Leave the inside bottom for last as its the hardest and works loose easier with some wiggle room.