StopTech Slotted Sport Rotors are 1-piece direct replacement brake discs for factory brake systems and stock calipers that look great behind your wheels and offer significantly improved braking performance. The unique slotting aids with heat and brake dust dispersal; prevents glazing of the pads; adds bite and improves wet and dry braking performance. Built to last; the black e-coating provides protection from corrosion and the high carbon metallurgy (in most applications) offers quieter operation; better crack resistance and increased performance.Premium e-coated rotor with advanced metallurgy that greatly reduces pad squeal. Especially effective with higher friction; European style brake pad compounds. Slotted for increased bite; improved looks and better performancePremium e-coated rotor with advanced metallurgy that greatly reduces pad squeal; Especially effective with higher friction; European style brake pad compounds; Added Molybdenum and Chromium to resist rotor cracking1998 2005 Lexus GS300, 1998 2000 Lexus GS400, 2001 2005 Lexus GS430, 2001 2005 Lexus IS300, 2002 2010 Lexus SC430Black E-Coated Non-Friction Corrosion ProtectionDouble Disk Ground For Consistent Friction SurfaceSuperior Resistance To Cracks From Thermal StressDirectional Curve Vane Designs On Selected AppsIncreased Initial bite and Wet Weather ResponseCryogenic Treatment Reduces Residual StressSlots Helps Evacuate Gasses/Dust/HeatDirect OE Replacement