StopTech Sport Brake Pads (formerly Street Performance) are designed for high-performance street driving and light track use. These pads offer superior biting power and high temperature resistance compared to standard pads. The 309.05580 kit is a front axle set. Included components: 4 x High-Performance Front Brake Pads (StopTech P/N 309.05580). Features: Para-aramid composites for consistent linear response, scorched surface for improved bed-in, and low-dust formula to keep wheels clean. Ideal for spirited drivers and autocross enthusiasts.