EBC DP51160NDX 03-04 Cadillac XLR 4.6 Bluestuff Rear Brake PadsEBC DP51160NDX 03 04 Cadillac XLR 4. 6 Bluestuff Rear Brake Pads Product Information The BlueStuff NDX race formula is an ultra high friction race pad with a friction level peaking above 0. 6 under braking, which will generate more G force than most pads out there if not all. BlueStuff is capable of street use as it bites well from cold. The big advantage of this pad is that it is one of the world? s first and only out of the box pre bedded race pads,