EBC DP4104R 64-69 Porsche 911 2.0 (M Caliper) (Solid front rotor) Yellowstuff Front Brake PadsEBC DP4104R 64 69 Porsche 911 2. 0 (M Caliper) (Solid front rotor) Yellowstuff Front Brake Pads Product Information The EBC YellowStuff compound is essentially a race pad but with a big difference in that it works from cold and can be safely used on the highway. If you want the ultimate in high friction braking this is the pad to choose. Brakes feel superb from first touch of the pedal and stay effective up to race temperatures. EBC YellowStuff is