Porterfield R4 Brake Pads have been used on our own racecars for over 5 years. With extensive use in both our GT3 320i and World Challenge 328i Touring Car, these pads have proven to be a great success. Porterfield pads feature:
- Carbon kevlar friction material
- Provide excellent stopping power
- Extremely rotor friendly
- Excellent pedal feel
- Immediate response to braking input
- Super high friction level through all temps
- Low wear rate