Hawk Performance HPX (High Performance Street) Brake Pad Set. Part Number: HB193C.670. This premium brake pad set features the Ferro-Carbon compound, providing significantly more stopping power and fade resistance than standard OEM pads while maintaining low dust and low noise levels. Ideal for high-performance street driving and occasional autocross. This kit includes: 4 Front/Rear Brake Pads (Axle Set), Installation Grease. Specifically designed for Brembo 4-piston calipers found on Dodge Viper, Ferrari F40/F50, and select Porsche models.