R4-S: High Performance Street:
Designed specifically for high performance and heavy-duty street conditions, Porterfield Enterprises's R4-S compound brake pads are perfect for everyday street use, but also capable of tolerating the most severe street use without any brake fade. The R4-S friction level will offer increased stopping ability with minimal pedal effort, while remaining rotor-friendly. The R4-S compound has the absolute lowest noise and dust levels than any other high performance brake pad. Good for performance street, autocross, and mild track use.
R4-S Compound Features:
- Superb stopping power under heavy use
- More friction level (up to .41) than OEM pads
- Gentle on rotors
- Very low dust
- Virtually noise-free