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For the 991-generation 911, built from 2011 to 2019, the table lists ten versions of the 24-valve, direct-injection flat-six. The Carrera and Carrera S move from the 3.4 and 3.8 of the 991.1 to the twin-turbo 3.0 of the 991.2. The Turbo, Turbo S and GT2 RS are turbocharged, while the GT3 and GT3 RS remain naturally aspirated. Outputs range from 350 to 700 hp, with chain-driven camshafts across the range. Note your 991's exact engine code: it determines which parts to choose.
| Version | Period | Engine code | Displacement (L) | Power (hp) | Fuel | Carburettor / Injection | Cylinders / Valves | Timing drive | Torque (Nm) | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|
| Carrera (3.4) | 2011–2016 | MA1.04 | 3.436 | 350 | Petrol | Direct injection | Flat-6 / 24 | Chain | 390 @ 5600 | 991.1 |
| Carrera S (3.8) | 2011–2016 | MA1.03 | 3.800 | 400 | Petrol | Direct injection | Flat-6 / 24 | Chain | 440 @ 5600 | 991.1 |
| Carrera (3.0) | 2016–2019 | MDC.KA (twin-turbo) | 2.981 | 370 | Petrol | Direct injection + twin-turbo | Flat-6 / 24 | Chain | 450 @ 1700 | 991.2 |
| Carrera S (3.0) | 2016–2019 | MDC.HA (twin-turbo) | 2.981 | 420 | Petrol | Direct injection + twin-turbo | Flat-6 / 24 | Chain | 500 @ 1700 | 991.2 |
| Version | Period | Engine code | Displacement (L) | Power (hp) | Fuel | Carburettor / Injection | Cylinders / Valves | Timing drive | Torque (Nm) | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|
| Turbo | 2013–2019 | MA1.71 (then MDA.BA) | 3.800 | 520 (then 540) | Petrol | Direct injection + twin-turbo | Flat-6 / 24 | Chain | 660 | |
| Turbo S | 2013–2019 | MA1.71 (then MDA.CA) | 3.800 | 560 (then 580) | Petrol | Direct injection + twin-turbo | Flat-6 / 24 | Chain | 700 | |
| GT3 | 2013–2016 | MA1.75 | 3.800 | 475 | Petrol | Direct injection | Flat-6 / 24 | Chain | 440 @ 6250 | Naturally aspirated |
| GT3 RS | 2015–2016 | MA1.76 | 3.996 | 500 | Petrol | Direct injection | Flat-6 / 24 | Chain | 460 @ 6250 | |
| GT3 | 2017–2019 | MDG.GA | 3.996 | 500 | Petrol | Direct injection | Flat-6 / 24 | Chain | 460 @ 6000 | 991.2 |
| GT2 RS | 2017–2019 | MDH.NA (twin-turbo) | 3.800 | 700 | Petrol | Direct injection + twin-turbo | Flat-6 / 24 | Chain | 750 @ 2500 |
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