2008 – 2014 Subaru Impreza, 2013 – 2017 Subaru WRX STI. StopTech Sport Drilled/Slotted Brake Rotor; Rear Right. Drilled & Slotted for increased bite, improved looks and better performance. The unique cross-drilling and slotting aids with heat and brake dust dispersal, prevents glazing of the pads, adds bite and improves wet and dry braking performance.