| engine type | Original performance | Performance after tuning | Vmax | More efficient | price |
|---|---|---|---|---|---|
| SL280 | 142 kW (193 hp) 270Nm | 155 kW (211 hp) 290Nm | * | 18 hp | 449€ |
| SL280 | 150 kW (204 hp) 270Nm | 162 kW (220 hp) 290Nm | * | 16 hp | 449€ |
| SL320 | 165 kW (224 hp) 315Nm | 178 kW (242 hp) 337Nm | * | 18 hp | 449€ |
| SL320 | 170 kW (231 hp) 315Nm | 184 kW (250 hp) 340Nm | * | 19 hp | 449€ |
| SL500 | 225 kW (306 hp) 460Nm | 241 kW (328 hp) 485Nm | * | 22 hp | 499€ |
| SL500 | 235 kW (320 hp) 470Nm | 250 kW (340 hp) 495Nm | * | 20 hp | 499€ |
| SL500 | 240 kW (326 hp) 460Nm | 255 kW (347 hp) 484Nm | * | 21 hp | 499€ |
| SL55 AMG | 260 kW (354 hp) 530Nm | 273 kW (371 hp) 555Nm | * | 17 hp | 649€ |
| SL600 | 290 kW (394 hp) 570Nm | 304 kW (413 hp) 595Nm | * | 19 hp | 699€ |