So I bought new tires a few weeks ago. At first they were ok after a few days they developed a vibration. Took them back they roadforced them and said they looked great. They still vibrated at highway speed. So I went back again and then again to the Dodge dealer that couldn't find any issue at all. So finally cooper agreed to replace the tires. They new ones were even worse the first set was annoying but you could live with it it. But the second set were horrific! They road forced them and they were still bad. Went to another shop same chain different location they re checked them and said they were good to. So I finally said look I'm done give me another brand of tires. So they gave me a set of uniroyals and swore it couldn't be the tires. Well I said whatever I don't care at this point put something else on and let's see. So they did. And now the car drives as smooth as ever. I had a bad experience with cooper a few years back they cs4 it wouldn't seat on the rim correctly and cause a vibration. 5 sets all did this . I thought I'd give them another shot and I paid for it. I guess them being made in China makes sense. The quality is probably suffering. I will not ever buy another set of coopers no matter how pleasant the deal looks. I am just blessed that I was able to get it resolved before Friday I leave st 5am for Colorado and did not want to shake all the way their!