Must use these pads with rotor # 0K2AZ-33-251. DO NOT MIX & MATCH. Per Kia sales bulletin # 3300-0005. If old pad 0K2A4-33-23Z is going to be used, then must use old brake disc # 0K2AA-33-251A.
and Shims
They are sold as a set and only quantity 1 is required for both wheels