You can do the front ones without removing the bumpers, but not the rear. Mine look much worse than yours. Not only are they cracked, but they have mildew on them. It could be cleaned off, but they would still be cracked! I have replacements in the box, will put them on someday soon. Then, another "someday soon", I'll get the whole car repainted. It is starting to have a kind of ghetto look to it, since the fillers at both ends are in need of paint..