The PowerStop Evolution GEOMET-coated rotor for 2009–2011 Audi A4 front is a direct bolt-on replacement that protects against rust without affecting braking performance. Treated with genuine GEOMET 360 coating, the rotor is made to OE specifications for fit, weight and vane count. It is dynamically mill-balanced and held to strict runout tolerances for smooth, quiet braking.
Power Stop 09-11 Audi A4 Front Evolution High Carbon Geomet Coated Rotor