SLK >2004 |
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| Engine | Original Power | Stage 1 | Difference | Vmax |
| 200 Kompressor (1.8k) | 120 kW (163 hp) 240Nm | 136 kW (185 hp) 300Nm | 22 hp | ✓ |
| 200 Kompressor(1.8k) | 135 kW (184 hp) 250Nm | 151 kW (205 hp) 300Nm | 21 hp | ✓ |
| 280 (3.0i) | 170 kW (231 hp) 300Nm | 185 kW (252 hp) 330Nm | 21 hp | ✓ |
| 300 (3.0i) | 170 kW (231 hp) 300Nm | 184 kW (250 hp) 330Nm | 19 hp | ✓ |
| 350 (3.5i) | 200 kW (272 hp) 350Nm | 218 kW (296 hp) 380Nm | 24 hp | ✓ |
| 350 BlueEFFIENCY (3.5i) | 225 kW (306 hp) 370Nm | 243 kW (330 hp) 400Nm | 24 hp | ✓ |
| 55 AMG (5.5i) | 265 kW (360 hp) 510Nm | 283 kW (385 hp) 540Nm | 25 hp | ✓ |