RP-X(TM) Racing Front Brake Pads by EBC(R). EBC Racings RP-X compound is an ultra-high performance track and race pad designed for performance vehicles driven hard on track and for dedicated race cars. RP-X has a very stable friction coefficient of 0.55 mu up to and beyond 850 C, making it an excellent performer for even the most demanding vehicle applications.EBC RPX Race Brake Pads; Front;True Race Performance To Highest Race Temperatures Ever RecordedRevolutionary Nucap NRS System Hook Pad RetentionExcellent Pedal Feel Over RP1Stainless Steel Back PlatesKind To Brake Discs/Rotors