Description
The Porterfield R4 Front Brake Pads are engineered specifically for BMW M3 & M4 F8 X models equipped with steel brakes. These pads are designed to meet the demands of high-performance driving, whether on the street or the track.
- R4 compound offers a friction level averaging 0.50, maintaining consistency across various temperatures.
- Optimal operating temperatures begin at 450°F, making these pads suitable for intense motorsport scenarios.
- Quick to reach race temperature, enhancing performance during restarts and limited track time.
- Compatible with cast iron and steel alloy rotors, requiring minimal bed-in period.
- R4-S variant available for street applications, focusing on low dust, noise reduction, and rotor friendliness.
The R4 pads are ideal for competitive use, including time attack and road course events, ensuring reliable stopping power under extreme conditions. While they excel in performance scenarios, the R4-S variant serves those who seek high durability for daily driving without compromising on performance characteristics.
Constructed from advanced Carbon Kevlar materials, these pads provide durability while minimizing wear on rotors. Note that the R4 is not suitable for street use, and expect some dust and noise with heavy-duty applications.
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