Evolution Coated Plain Vented Rear Brake Rotor (AR85155EVC) by PowerStop®. Quantity: 1 Per Pack. Evolution Coated rotors are a direct bolt-on replacement for factory equipment. These disc brake rotors are fully coated, including inside the vanes, using Genuine GEOMET® rust preventative coating. Evolution Coated rotors are manufactured with Tru-Cast™ technology, resulting in a precision cast and precision machined product. Rotors are OE weight and retain the OEM vane configuration for trouble-free operation.