I have an 04 Sport with the Dunlop's and I noticed a vibration. I took it to the dealer and they rebalanced the wheels and the vibration was still there. I was told by the dealer that they did not handle the warranty on tires and that I would have to call the tire company. Come to find out that Goodyear makes Dunlop, so I called them. They said to take it to a Goodyear service center to let them look at the tires. I ended up having one of my front tires being out of round. I got the tire replaced free of charge and so far the vibration is gone. I will do some more freeway driving in the morning and let you know how it goes. Sorry for the long post but I thought this may be helpful to all those suffering the same problem.

 

Interesting. bumber - bumper doesn't include the tires.