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Well at least my 997TT is not going to look out of date.
No doubt the 911 Turbo will continue to live up to it's name. I had the privilege to tune a 1983 911 Turbo with Bosch Jetronic fuel injection, which we had replaced with electronic fuel injection with 2 injectors per cylinder, powered by a Haltech E6K-12 ECU. It had a KKK Turbo equivalent to a Garrett T3/T4. At only 15 psi we put down 450 HP to the wheels with equal amount of torque. That same car back in the 80s was not able to make the same amount of power due to the type of pump gas octane available then. So most of the advancements that you see in HP and Torque today is not attributed to the engine build alone, it is more to do with the fuel that we can buy at your Petrol Station which allows more boost or compression ratio. This is what ultimately determines the amount of HP we can tune an engine to run at safely. The Haltech made the car smoother and easier to drive, and what was amazing was that inspite of the HP increase, the car delivered better mileage, especially around town.