I have about 8K miles on these tires and not really sure when to replace them. I would guess around 20K - 25K depends on your driving habits. As far as sound, I noticed very little noise from these tires. I believed there are posts about the Vredestein tires on others forum. You may want to check it out.

About Speed Vision Motor Sport in Glendale California. I contacted Allen when I got my package. He is a good guy...