Porsche 996TT K24/18G 5bar FPR 625HP Tune VRTuned.com August 19, 2009 Product Info 2 Comments Porsche 996TT K24/18G 5Bar FPR Upgrade 625HP Tune Much like our other K24/18G upgrade tune, this ECU file keeps the stock injectors and boost solenoid and runs the much simpler 5bar fuel pressure...