Panamera V8 4S ECU Flash Completed with Solid Gains VRTuned.com January 27, 2014 Company News, Product Info, Tuning Tech With our already successful Panamera Turbo ECU flash, we just finished the tuning of a 2011 Panamera V8 4s. The V8 is still a strong engine for the large Porsche sedan and doing a ECU flash can really take...