 Big O Tires. It's the stars, stripes, and savings sale. June 10th through July 7th. Get $80 to $120 instant savings on four select in-stock Big O Tires with installation purchase. Big O Tires. The team you trust. Installation charges extra. Required on all four tires. Not followed with other offers. Eligibility may vary. Disposal fees extra. And shop these extra wherever needed. See store for details.