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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 991.2 GT3 and GT3 RS (2017+), tuned through a handheld device that interfaces with the vehicle's OBD-II port. Maps are available for stock cars or ones fitted with Removes the catalytic converters entirely; legal only for closed-course track or off-road use, not street driving. pipes, sport cats, a full exhaust or an upgraded turbo. Reprograms sensor inputs, air/fuel ratios and boost pressure for the factory-rated 500hp/460 Nm engine, with a tuned output of 525hp and 485 Nm.
Frequently asked
Does the XperTune Performance Software fit my 911 GT3 RS?
This listing is specific to the Porsche 911 GT3 RS (991.2). 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 991.2 GT3 / GT3 RS vehicles (2017+)
Do I need to remove the ECU?
No. The XperTune handheld interfaces with the OBD-II port, so there's no need to pull the ECU or mail it in.
What power gains does Fabspeed quote?
Fabspeed lists the 991.2 GT3 / GT3 RS going from a stock 500 HP / 339 TQ to a tuned 525 HP / 358 TQ.
Does the tune account for other modifications I've made?
Yes, Fabspeed says maps are available for completely stock cars as well as cars with cat bypass pipes, sport cats, full exhaust systems, or upgraded turbos.
What do I need to use the handheld?
You need access to a PC or Windows computer, since Mac OS is not supported, and the device pairs with only one vehicle.
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.
More for your 911 GT3 RS
Diffuser
Sport Headers with HJS Catalytic Converters
Front spoiler I
Side Muffler Bypass Pipes
Rear spoiler trims
Deluxe Dual Style Tips
Side skirt panels
991.2 GT3 / GT3 RS Long Tube Competition Race Header System
Side skirts
Titanium Rennsport Muffler
Aero hood, glossy carbon, code 199
Titanium Supercup Cat-Back Exhaust System