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XperTune Performance Software

XperTune The car's engine control unit; reprogramming it changes fuelling, ignition timing and (on turbo cars) boost pressure. performance software for the Porsche 955 Cayenne S 4.5L V8 (2002-2007), tuned through a handheld device that interfaces with the vehicle's OBD-II port rather than removing the ECU for bench flashing. Reprograms sensor inputs, air/fuel ratios and boost pressure for the factory-rated 340hp/420 Nm engine, with a tuned output of 362hp and 450 Nm.
Frequently asked
Does the XperTune Performance Software fit my Cayenne?
This listing is specific to the Porsche Cayenne (955). Exact fitment for your year, trim and options is confirmed on your free consult before anything is ordered.
What does the price include?
The delivered price includes the part from Fabspeed USA, freight to Australia, import costs and GST. Enter your postcode to refine delivery; the final figure is confirmed on consult.
How long until it arrives?
Every Fabspeed part is made in-house at Fabspeed USA with about a one-week production lead time, then allow another 3-4 days for delivery to Australia via UPS. That freight is already included in the price.
Exactly which cars does this fit?
Fits all Porsche 955 Cayenne 4.5L V8 Vehicles (2002-2007)
How much power does the tune add on the Cayenne S?
Fabspeed's figures show the 4.5L Cayenne S going from a stock 340 hp and 420 Nm to 362 hp and 450 Nm with the XperTune software.
Do I need to remove my ECU?
No, the handheld reads your ECU via the OBD-II port and you send that data to Fabspeed by email, so the ECU itself stays in the car.
What computer do I need?
You need a PC or Windows computer; Fabspeed notes Mac OS is not supported for uploading your factory file data.
Can the handheld be used on more than one car?
No, Fabspeed says the handheld device marries with your vehicle and can only be used on one car.
Who installs it?
Rennen Motorsport in Adelaide, or an authorised dealer near you. Fitting it yourself may also be an option depending on the part, so raise it on your consult; professional installation is quoted separately.
Is it covered by warranty?
Fabspeed products carry the manufacturer's warranty, supported locally through Rennen Plus as the Australian principal. See our returns policy.
Can I just buy this outright, or do I need to talk to someone first?
Every enquiry, whether it's one part or a full build, starts with a free consult. We confirm the exact spec for your car before anything is quoted or ordered.




