EBC Blue Stuff Race Pad Mazda RX7 86-95 (Front)We have had great success using these pads in our #26 Time Attack FC RX 7, we are lucky to be sponsored by EBC Brakes. Bluestuff NDX is a high friction sport and race material that can be used for aggressive street driving and certain types of track use. The material has had much success on the track with quality aftermarket calipers (Multi piston systems with better release and cooling and larger rotors) and limited success with street based calipers