I have the Bushwackers extend a fender. They fit great and were easy to install. I actually just bought a new set since some dumb broad decided to drag her car along the side of one of the rears. One of the rears basically melted all over the side of her car. I ended buying the whole new set since I was worried the original ones were faded and wouldnt match. They actually hold their black color well in the sun. The originals have been on there for at least two years. 8 mo of it in the California sun. I like the Bushwackers. A few pics.
ATS fan here...sorry black doesn't show up as well...
EDIT: The ATS flares are super easy to install, just take your time if you get them and clean off the surface very well. They come with mouting tape and screws that go into the existing holes. Finish and fitment are perfect.
You have to be careful with the ATS, they look great and fit well but when the double sided tape wears down they leave a small gap between them and the body. Once this happens dirt gets in there and it acts like sand paper and you will have a ring of just primer.