With a cold friction coefficient of 0.55, the Greenstuff sport brake pad guarantees excellent deceleration even when the brake system is cold (negative acceleration = deceleration). Like all EBC brake pads in the automotive sector, all EBC Greenstuff sport brake pads are provided with a brake coating, broken edges, a heat groove and a powder coating. In the OE spare parts area, too, we attach great importance to manufacturing high-quality products in order to guarantee your safety. All EBC Premium brake discs are made of gray cast iron and have a tensile strength of 150N / m2 with a deviation in surface hardness of max. So it is not a cheap import product, but a high quality O.