DBA Drilled & Slotted 4000 Series Front Brake Rotors (Pair) - Subaru WRX 2002-2014 (+Multiple Fitments)DBA 4000 Series Rotors utilize High Carbon Alloyed Iron (XG 150) and Thermal Stability Profiling (TSP) allowing constant extreme heat cycles designed for those late braking scenarios. 4000 XS rotors provide improved braking performance, better brake pedal feel and with the benefit of looking the part as well. Position: Front Features: Sold as a pair T3 Slot 48 precision CNC machined slots These are tri symmetrical curve slots that will dampen the