Porsche Cayenne S V8 4.8L DFI 08+ VRTuned.com August 19, 2009 Product Info 2 Comments Porsche Cayenne S 4.8L V8 DFI The 2008 and up Porsche Cayenne is a big change over previous models. The new Cayenne S has switched from a Bosch ECU to now running a Siemens SDI system. The new 4.8L engine in the Cayenne S is much more powerful then the previous generation. With stock 385hp at the crank, VRTuned has developed tuning to give the Cayenne S power like its bigger brother, the GTS. Another 33 horsepower and 21ft/lbs of torque to the crank is added. VRTuned has spent time engineering and developing software for the new FSI cars and is one of the only tuners in the world that can offer an ECU flash via the OBDII port. Cayenne S Stock Power – 385HP and 369ft/lbs Tuned Power – 418HP and 390ft/lbs VRTuned flashes the Cayenne S through the OBDII port of the car. With their Flasher Client software, they are reading a full 1mb of the file to completely tune the ECU. Other companies claim to be able to do this, but are only read 128kb and making global changes. The ECU flash will alter your fuel, and timing maps to give you a very dominating increase of power over stock. For those worried about check engine lights, there are none! Once the car is flashed, the low end torque and throttle response will be much improved. You will notice the Cayenne pulling harder to redline. The overall improvement of drivability makes the Cayenne S even more fun then it was originally. Since warranty is always a concern, VRTuned also provides you with your original file. With this original file you can flash your car back to stock at any point. If you go to the dealer, there will be nothing visible through the Porsche PIWIS system. VRTuned can program your vehicle no matter what country you are from or what octane you use. We have different maps for those running 91 octane or 93 octane and higher. What are the benefits/functions of going with VRTuned compared to the competition? VRTuned does not require the removal of your ECU from the car. There is no down time at all. Your car can be flashed at your convenience from the comfort of your own garage. VRTuned reflashing is done via a Client Cable that is connected to the OBDII port. The customer simply plugs the cable into the car and reads the file with a laptop per the instructions with the cable. Once the file is downloaded, it is emailed to the VRTuned secure server where the file is tuned and then emailed back to the client. The client simply uploads the file and they are done. Total process is about 1 hour. Reflashing is done according to the vehicles octane level of pump gas and modifications are taken into account (Intake, Headers, Exhaust) to enhance power gains. If you have any questions about the Porsche Cayenne S FSI ECU Flash, please contact us using our Support Page. 2 Responses julian Frech November 26, 2009 Hi, I want to know if you can help me with this parts, is the ECU for the gearbox of a porsche Cayannne S 2008 4.5 , the number is = VW – 09D 927 750 HA . Please let me know if you have one or maybe the place to buy this part. A person in USA mail me this : Since they do not have the same programming… You will have to flash the computers and have them reprogrammed. I’m not sure if this is something you want to do. Let me know what you would like to do. Efren Thanks Log in to Reply Dan November 30, 2009 VRTuned does not flash the TCU nor supply the actual ECU box. We only do the ECU upgrade. I suggest contacting a dealer. Log in to Reply Leave a Reply Cancel ReplyYou must be logged in to post a comment.