Porsche 997 C4s ECU Flash Proven Again with Great Throttle Response VRTuned.com December 18, 2009 Company News Our customer Gary from California recently flashed his 3.8L Porsche 997 C4S with the VRTuned ECU Tuning software. The ECU Flash is designed to give the car a well balanced improvement in driveability and based on his comments, it did that! “I just installed my flash for my 06 997 C2S. I was impressed the first time I ran it through the gears, but one blast through the canyon, and I was hooked. The car pulls strong all the way to 7500 rpm, then drops right into the sweet spot when I shift. Normal mode is more like sport mode used to be. Sport mode now is very crisp and responsive. Dan was a big help with the whole process. To say I am happy would be an understatment.” Share this: Sending Thank you for sharing the gallery image