RS 4-4 Medium friction compound with a higher friction value than the RS 4-2. It is disc friendly with fade resistance up to 1,050°F. It is a very good rear compound for touring car applications in combination with RS 14 front pads.
Based on the Pagid Application Guide, this pad fits the following applications.
| Make | Model | Year | Front | Rear |
| BMW | 728 - 735 [E38] | 94 - 01 | 1427 | 2685 |
| BMW | 830 - 850 [E31] | 90 - | 1427 | 2685 |
| Bugatti | EB 110 |
| 1427 | 1427 |
| Ferrari | F512M & 550 | - | 1427 | 1203 |
| Ferrari | 575 M Maranello | 02 - 06 | 1427 | 1203 |
| Maserati | Coupe | 02 - | 1427 | 1203 |
| Maserati | Spyder | 02 - | 1427 | 1203 |
| Nissan | Skyline GTR | 89 - 95 | 1427 | 1587 |
| Nissan | 350 Z Coupe Track | 02 - | 1427 | 1587 |
