HP Plus utilizes a unique Ferro-Carbon, high-tech friction material that was developed and manufactured for sport driving in autocross, Solo II and track day applications. The Ferro-Carbon formulation offers lower wear rates and higher torque values than other competitive materials. Extremely high coefficient of friction makes HP Plus the perfect upgrade over stock for high performance streetcars used in autocross competition or that experience repetitive, heavy braking. * Extremely High Friction Output * Fade Resistant * Worthy for Autocross & Club Racing Events