Porsche 997.2 Carrera DFI ECU Flash Tuning VRTuned.com August 18, 2009 Product Info 4 Comments Porsche 997.2 Carrera The 2009 and up Porsche Carrera is a big change over previous models. The new 911 has switched from a Bosch ECU to now running a Siemens SDI system. The transmission can be had in...