StopTech Sport Brake Pads (formerly Street Performance) are designed for street-driven production vehicles that may see occasional track use or high-performance driving. The semi-metallic Para-Aramid friction material provides excellent cold bite and stable performance across a wide temperature range. This kit (P/N 309.03940) includes a complete set of front axle brake pads (4 pads total). Key features: High MOT (Maximum Operating Temperature) to eliminate brake fade, consistent pedal feel, and low dust compared to track-only pads. Ideal for BMW M-series owners seeking an upgrade over stock components for spirited driving.