Im glad to hear they are stiffer. I was waiting to get some myself- but not sure if they would be better than stock. They will be better for everything except one situation- offroad. you will have less suspension articulation. Easily remedied by the addition of sway bar disconnects or just removing them from the a-arms and rear axle before wheeling. That doesnt mean worse offroad performance- just less articulation. Probably great in a baja run or rally type race. Polyurethane will improve their performance even more so, but once again, even less articulation. Remedied the same way as above. I have a stability problem running over 100 mph on the highway with oversize tires, and really wanted the benefit of these sway bars. Thanks for posting your reviews guys.