Hawk Performance HPS (High Performance Street) brake pads are world-renowned for increasing stopping power on street-legal vehicles. This set (HB141F.650) is designed for rear fitment on high-performance Audi/Porsche platforms and is the standard replacement for StopTech ST-40 calipers. The Ferro-Carbon compound offers a significant increase in friction coefficient over stock pads while ensuring low dust levels and minimal noise. The kit includes: 1x Rear Brake Pad Set (4 pads), Arctic Grease lubricant packet. Specifications: Optimal Operating Temp: 100-500°F; Max Operating Temp: 750°F.