Porsche 997 Turbo VTG Turbo Upgrade ECU Flash VRTuned.com June 14, 2017 Product Info, Tuning Tech One of the most popular upgrades for the Porsche 997 Turbo is enhancing the stock VTG turbochargers. Changing out the compressor wheel will give you up to 70 more horsepower when tuned properly with...
