I have about 12,000 miles on my Kumho Ecsta's. Suddenly in the past week they have gotten very noisy.

They still seem to have alot of tread but they just make a lot of noise all of a sudden. Does this mean they need to be replaced?

 

Do they feel different? Do you have any vibration?

I would check to be sure that none of the tires have ballooned out anywhere.

 

Check your wheel bearings too. It could be them.

 

ecstas get loud when the toe is out and they get cupped

id check your alignment