Buy 2 Tires, Get 2 Free or Buy 1, Get 1 Free Details: Buy 2 Tires and Get 2 Free on All Tires in Stock, up to $200.00, or Buy 1 Tire and Get 1 Free, up to $100.00. Restrictions apply, see store for details. Must purchase tire installation package that includes balancing, nitrogen, and life of tire service agreement. Max value on each free tire is $100.00. In stock tires only. Expires 12/18/2017.