PORSCHE RACING HISTORY1973 - Kyalami 9 Hours
3 November 1973 - Kyalami, South Africa
Reinhold Jöst & Herbert Müller win in a Porsche 908/03
Overall - 1st : Gr.5 - 1st : Gr.4 - 3rd
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 908/03 | 908/03-008 | Gr.5 | Reinhold Jöst (D)/Herbert Müller (CH) | R. Jost Racing (D) | 1st | 1st | 5th | 360 laps |
| 3 | Porsche 911 Carrera RSR | G4.4 | Martin Birrane (IRL)/Guy Tunmer (ZA) | Paradise Beach/Swazi Radio/Crowne Racing | 10th | 3rd | 15th | 301 laps |
South African Springbok Trophy Series
Previous 1973 - Can-Am Riverside Next 1974 - IROC Daytona