SKU: AUD.RS5.ECU
Fabspeed Audi RS5 (B9) XperTune Performance Software (2018+)
Boost your 2018+ Audi RS5 B9 2.9L V6 engine to 510 WHP and 576 TQ from stock 450 WHP and 443 TQ with Fabspeed XperTune ECU software. This upgrade reprograms sensor inputs air/fuel ratios and boost pressure for stronger horsepower torque and sharper driving response. It fits all RS5 B9 models while preserving everyday drivability and long-term reliability.
Key Features
- Power Gains: Increases output to 510 WHP and 576 TQ delivering noticeable acceleration and throttle response on dyno-tested 2.9L V6
- Precise Tuning: Adjusts ECU parameters for balanced performance without compromising engine safety or daily usability
- Full Compatibility: Designed exclusively for 2018+ Audi RS5 B9 2.9L V6 coupes and sportbacks
- Stock File Backup: Fabspeed saves original ECU data allowing easy reversion to factory settings anytime
- Fast Turnaround: ECU tuned in 24-48 hours upon receipt with same-day shipping return
Product Notes
- This is a mail-in ECU reprogramming service not a physical product shipped upfront
- Complete ECU Information form required with your ECU shipment contact us for alternatives
- Special tune requests or upgrades may incur extra fees
Installation Notes
- Professional installation recommended.
- Remove and ship your ECU to Fabspeed following emailed instructions after purchase
- Direct ECU plug-in compatibility no additional hardware needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2024 | Audi | RS5 | Coupe 2.9L V6 B9 |
| 2018-2024 | Audi | RS5 Sportback | 2.9L V6 B9 |
Why Choose Fabspeed?
- Proven track record in Audi performance tuning for motorsport and street
- Engineered tunes backed by dyno testing and real-world validation
- Dedicated support for seamless ECU process and vehicle integration
Frequently Asked Questions
- Q: Which Audi RS5 models does this fit?
A: Fits all 2018-2024 Audi RS5 B9 Coupe and RS5 Sportback with 2.9L V6 engines no exceptions - Q: What is the tuning process?
A: Purchase online receive download link with instructions ship ECU to Fabspeed get it tuned and returned in 24-48 hours - Q: Can I return to stock tune?
A: Yes Fabspeed archives your factory ECU file for full revert capability at any time
Shipping & Handling
- Method: Customer ships ECU to Fabspeed returned via same method received (Ground Overnight etc)
- Availability: In stock – process begins after ECU receipt
- Packaging: Secure ECU packaging customer-provided Fabspeed returns in kind





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