StopTech Sport Cross Drilled Brake Rotor - Rear Left

StopTech / PowerSlot replacement rotors for the 2015-2020 Subaru WRX. Sold individually, price is for one rotor. The drilled versions are directional, specific to left or right sides. Excessive heat can cause resins in your brake pad to vaporize or "outgas." As the brake pad wears, the used friction material turns into a fine dust. This boundary layer of heat, gas and dust builds up between the pad and rotor surfaces and inhibits performance. Power Slot's exclusive Vac-U-Slots are machined into the rotor and help evacuate gasses and dust, shed heat, and keep the brake pad surface clean. In wet, raining conditions, Vac-U-Slots help push water off the braking surface for better stopping power. For most late model truck and SUV applications and select sports cars, StopTech also uses a special Power Alloy metallurgy and directional cooling vanes to improve high temperature performance. PowerSlot rotors are finished in a durable black e-coat on the hat, edges and internal vanes to prevent corrosion. The braking surfaces are left in a bare iron finish to improve brake pad bed-in.