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Engine Family

9A1 / 9A2 flat-six (DI)

Flat-6, water-cooled, direct injection3.0–4.0 LNaturally aspirated & twin-turbo2008–present330–691 hp

Designed by Porsche (Weissach). The modern DI flat-six that replaced M96/M97. 9A1 (2009, DFI, NA + TT) → 9A2 (2016, twin-turbo Carrera — first turbocharged base 911) → 9A2 Evo (992). Variant codes in our DB: MA1.23 (981 Boxster/Cayman 3.4), MA1.24 (981 GT4 3.8), 9A1 3.8 NA (997.2 GTS, Sport Classic, Speedster, 991.1 Carrera), 9A1 3.8 TT (997.2 & 991 Turbo, 991 GT2 RS), 9A2 3.0 TT (991.2), 9A2 Evo 3.0 TT (992 Carrera, Dakar), 9A2 Evo 3.7 TT (992 Turbo, Sport Classic), 9A2 Evo 4.0 NA (718 GT4 / Spyder). FLAG: no single named designer.

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