The PowerStop Z23 Evolution Sport Brake Upgrade Kit for 2004-2009 Audi S4 front is a complete bolt-on brake upgrade that replaces pads, rotors and calipers to improve stopping power and reduce wheel dust. It pairs Carbon-Fiber Ceramic Z23 pads with drilled-and-slotted rotors and red powder coated calipers for corrosion resistance and visual impact. Front pads include integral sensor wires; the kit also bundles stainless-steel hardware, high-temp lubricant, multilayer shims and zinc-plated rotors.
Power Stop 04-09 Audi S4 Front Z23 Evolution Sport Brake Kit w/Calipers