I installed these on my 2012 G37 and am very happy with them. They look great and give my car a more dynamic look. A few notes: The 4 piece set includes different sizes and types of clips for front and rear to accommodate large front calipers. Two clips slide on each side of the caliper, to which the cover is attached with locknuts. The only difficulty was adjusting the clamp so there was enough clearance between the bottom of the clamp and the top of the rotor. They give you a strip of paper to check. Pushing the clamps all the way down seemed to help get the spacing correct, and I really only had to bend a rear lower side clamp slightly to get it right. Overall, the calipers are firm and fit very well. Some may complain that they don't cover the entire caliper, but it's very thin and you can't tell unless you look closely. Installation took a couple of hours, but I carefully checked the first two calipers to make sure they didn't squeak or rattle. It's quality construction, relatively easy installation and fantastic looks, very happy with the purchase.