Hawk Performance HP Plus (HP+) Brake Pads are designed for the enthusiast who needs a dual-purpose pad for spirited street driving and autocross or track days. This specific set (HB615N.535) is engineered for Brembo rear calipers, offering a significantly higher coefficient of friction compared to stock pads. The kit includes: 1x Rear Axle Brake Pad Set (4 pads total), Part Number: HB615N.535. Note: Due to the high-friction race-based material, some increased noise and dust levels are expected under street driving conditions.