Never had Icon, but I can say that all the crap I read about Carli minimized how good they really are. I had a guy comment on how good my truck rode. He said it's much better than he expected and about like his. He has a half ton Dodge. I've also been in a lifted half ton Chevy that rode like a Sherman tank. Mine was better with factory springs and shocks. From what I've read Icon and Carli are equal competitors. If you have one, don't waste money buying the other. I don't know what you have, but you'd be well served with either. If you have something else, get Carli or Icon. You'll be stepping up to best in class. Get shocks to go with them. Bilstien, Fox, or King. King is way outta my price range, Fox pushed it a bit, so I have Bilstien. I'm pleased. Everyone says Fox is leaps and bounds better. I'll take their word for it until I get ready to test it myself. I don't see me testing Kings. No clue how Icon shocks fit into those three.