Porsche Cayman S 3.4L OBDII ECU Flashing VRTuned.com February 24, 2017 Product Info, Tuning Tech Just got this car delivered to us for a nice performance enhancing ECU Flash. Already equipped with a Capristo exhaust system, the ECU flash will really help take this Porsche Cayman S 3.4L up a notch. The...