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XperTune Performance Software
Fabspeed's XperTune software is an ECU remap for the 5.2L V10 Audi S8 (2006-2010), developed on Fabspeed's in-house dyno for stock cars and for cars already running a Fabspeed exhaust. Paired with Fabspeed's Resonator Bypass X-Pipe, testing took the car from a stock 312whp/298 ft-lbs to 341whp/340 ft-lbs, a peak gain of 29whp and 42 ft-lbs of torque, with maximum gains of over 44whp at 5,500rpm. This isn't a physical part: you send in your ECU for Fabspeed's tuner to bench-flash with the upgraded map, then it's returned for you to reinstall, with no other changes to the car needed. Your factory settings are saved so the ECU can always be flashed back to stock.
Frequently asked
Which cars does the XperTune Performance Software fit?
Fits your Audi S8 V10 (D3, 2006-2009). Fabspeed lists this piece for: Audi S8 5; Audi S8 V10. 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.
Do I need to send in my whole ECU?
Yes, for this tune you mail your ECU to Fabspeed, where it's bench-flashed with the upgraded map and returned for you to reinstall.
Can I go back to the stock tune later?
Yes, Fabspeed saves your factory ECU settings so the car can be reverted to stock at any time.
How much power does it add?
Paired with Fabspeed's Resonator Bypass X-Pipe, dyno testing showed a peak gain of 29whp and 42 ft-lbs of torque, with maximum gains of over 44whp at 5,500rpm.
What computer do I need to complete the process?
A PC running Windows; Mac OS is not supported for uploading your factory file information.
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.
