Porsche 993 Turbo ECU Software Upgrade Select:Select Year=OTP Flash (1996-1997.5 See Description) 4KG from the rear of

4KG from the rear of the vehicle for much better transient handling and inertia

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Porsche 993 Turbo ECU Software Upgrade Select:Select Year=OTP Flash (1996-1997.5 See Description) 4KG from the rear ofPerformance ECU software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air fuel ratios, and boost pressure (if applicable). NOTE: ECU upgrades are available for all 993 Turbo models, but you must specify which style of ECU your vehicle requires. Early model 993 Turbo (1995) use an ECU EProm Flash, while the later cars equipped with the "drive block" feature (1996 1997. 5) use an OTP style ECU.