The PowerStop semi-coated rear brake rotor for 2017–2018 Audi A4 is a direct bolt-on replacement that restores original braking behavior while resisting corrosion. A silver epoxy coating on the hat, outer edge and internal vanes helps preserve a clean appearance behind alloy wheels. Made to match OE weight and vane count, it offers cross-hatched friction faces for pad break-in, precise DTV/runout tolerances, dynamic balancing and is sold individually.
Power Stop 17-18 Audi A4 Rear Semi Coated Rotor