Hawk Performance Ceramic Brake Pads (HB800Z.670) are engineered for high-performance street use, offering low dust and nearly silent braking. These pads are designed specifically for Wilwood 6617 / Superlite caliper profiles with a 17mm (.670") thickness. The Performance Ceramic compound provides a linear friction profile and reduces brake fade while protecting wheels from corrosive brake dust. The set includes a full axle set (4 pieces) of brake pads. Manufacturer Part Number: HB800Z.670. Material: Performance Ceramic. Fitment: Wilwood 6617 Caliper series.