EBC Bluestuff Front Brake Pads 1989-94 S13 240SX (Non-ABS)EBC 89 96 Nissan 240SX 2. 4L Bluestuff Front Brake Pads. Bluestuff is an entry level trackday and race pad that has good street manners and is actually R90 approved for street driving. There are two compounds within the Bluestuff range Bluestuff NDX higher friction 0. 52 Mu and new Bluestuff B with a lower 0. 42 Mu. However, due to Bluestuff having excellent cold friction and being very controllable, this compound has quickly become the brake pad of