Description
Fabspeed’s XperTune for the D3 Audi S8 optimizes the 5.2L V10 ECU for maximum power and crisp drivability without compromising reliability, validated on the company’s in-house Dynojet. Maps are available for stock cars and for builds with upgrades like Fabspeed exhausts and intakes to match the vehicle’s configuration.
![Fabspeed XperTune Performance Software for D3 Audi S8 [FS.AUD.S8S6.ET]](https://diamondusedparts.com/wp-content/uploads/2026/04/fabspeed-xpertune-performance-software-for-d3-audi-s8-fsauds8s6et.jpg)





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