StopTech Slotted & Drilled Sport Brake Rotor

The high carbon metallurgy in this StopTech rotor is a key detail for reducing noise, especially when paired with higher-friction European-style brake pads. This one-piece, direct-replacement rotor is designed for your 2004-2009 Audi S4's factory brake system and calipers, offering a noticeable improvement over stock performance.

The combination of cross-drilling and slotting isn't just for looks; it actively helps dissipate heat and brake dust away from the pad surface. This process helps prevent pad glazing and contributes to a more consistent, responsive feel, whether you're braking in wet or dry conditions. The black e-coating on the non-friction surfaces provides solid protection against corrosion, while the double disk grinding ensures a consistent friction surface for reliable stopping power.

This rotor is built to last and offers a direct OE replacement, meaning it fits right without modification. You'll notice an improved initial bite and better response, especially in wet weather, making it a solid option for enhancing your S4's braking capability.