What a difference! I had a missed matched pair of Dunlops on the front and Nittos on the back when I bought the car used a year ago. Road noise is down at least 50% although the Z51 package does not help matters which is fine with me. Straight line traction and braking is fantastic. Cornering is predictable and grip is light-years better than the junk that was on the car. This is my fifth Corvette,I had a '62,'64,'70, and 84 previously. I am now realizing what a C6 can really do with the proper tires. Doing business with Tire Rack was fantastic, the tires were shipped the same day I ordered them online, and the shop had them the next day. Follow up tracking was great. I shopped these tires for months and Tire Racks comparisons and reviews were the best in making my decision.