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Porsche 992 Turbo S ECU Tuning Guide: 9A2 Flat-Six Power Gains, Stage 1 vs Stage 2 & GCC Build Tips
Porsche 992 Turbo S — The 9A2 EVO PlatformThe Porsche 992 Turbo S is powered by the 9A2 EVO (MA1.xx) — a 4.0-litre twin-turbo flat-six that produces 640 HP and 590 lb-ft of torque from the factory. It is one of the most capable forced-induction engines in any production sports car, with a power-to-displacement ratio that puts it among the most energy-dense road-car engines ever built.The 9A2's engineering margin is substantial. Porsche builds this engine for the kind of sustained abuse that 911 Turbos have always been subjected to — which means there's significant headroom above stock calibration that an...