| engine type | Original performance | Performance after tuning | Vmax | More efficient | price |
|---|---|---|---|---|---|
| 991 Carrera | 257 KW (350 hp) 390Nm | 272 KW (370 HP) 415Nm | * | 20 hp | 799€ |
| 991 Carrera S | 294 KW (400 hp) 440Nm | 309 KW (420 HP) 465Nm | * | 20 hp | 799€ |
| 991 Turbo | 383 KW (520 HP) 660Nm | 445 KW (605 HP) 820Nm | * | 85 hp | 799€ |
| 991 Turbo ** | 383 KW (520 HP) 660Nm | 459 KW (625 hp) 850Nm | * | 105 hp | 799€ |
| 991 Turbo S | 412 KW (560 HP) 700Nm | 445 KW (605 HP) 820Nm | * | 40 hp | 799€ |
| 991 Turbo S ** | 412 KW (560 HP) 700Nm | 456 KW (620 HP) 850Nm | * | 60 hp | 799€ |
| 991 GTS 3.8DFI | 316 KW (430 hp) 440Nm | 338 KW (460 HP) 470Nm | * | 30 hp | 799€ |
| 991 GT3 3.8DFI | 349 kW (475 hp) 440Nm | 368 kW (500 hp) 470Nm | * | 25 hp | 799€ |
| 991 GT3 4.0DFI | 368 kW (500 hp) 460Nm | 386 kW (525 hp) 485Nm | * | 25 hp | 799€ |