I purchased a 2011 SLP ZL1 Camaro earlier this year and it had three out of the four original tires on it. I decided to replace them so they were all the same. Front tires are 255X40ZR20 tires with one have about 250 miles on it and is a Pilot series. The back set are 295X35ZRX20 and the original tires have 10,500 miles on them and one of these rear tires has three plugs installed from the dealership. I ran it for awhile and it held up fine. Best offer on tires and will separate them out and can ship if you cannot pick up. I can be reached at 330-770-2517 for any questions and can provide pictures as well.