S2 |
||||
| Engine | Original Power | Stage 1 | Difference | Vmax |
| 2.2 20V Turbo | 162 kW (220 hp) 309Nm | 202 kW (275 hp) 375Nm | 55 hp | ✓ |
| 2.2 20V Turbo | 169 kW (230 hp) 350Nm | 203 kW (276 hp) 415Nm | 46 hp | ✓ |
| 2.3 | 169 kW (230 hp) 310Nm | 203 kW (276 hp) 380Nm | 46 hp | ✓ |
S2 |
||||
| Engine | Original Power | Stage 1 | Difference | Vmax |
| 2.2 20V Turbo | 162 kW (220 hp) 309Nm | 202 kW (275 hp) 375Nm | 55 hp | ✓ |
| 2.2 20V Turbo | 169 kW (230 hp) 350Nm | 203 kW (276 hp) 415Nm | 46 hp | ✓ |
| 2.3 | 169 kW (230 hp) 310Nm | 203 kW (276 hp) 380Nm | 46 hp | ✓ |