After waiting for about 2 hours, Pep Boys installed two tires for a total of $153, which included a labor charge of $135 and an install fee of $17. They didn't provide a written estimate beforehand, and the advertised price of tire install was "as low as $15.99. So I felt a little scammed as I could have saved money by going to a smaller tire shop that only charges a small fee for tire installation. I learned a valuable lesson about researching prices and being aware of hidden fees.