Bought set of 4 tires, and later gave the car to my brother. He had a problem with one tire after 2 years. Pep Boys stood behind their warranty. He just needed a copy of the repair slip.. I need new tires on my current car, and went there for their buy 3, get 4th free sale. Tires are lower cost, and when I check ratings on the internet, rated higher than other famous brands. Good deal for the money. Portsmouth store is where I have gone.