Description
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Unlock the full performance potential of your Audi A8 or S8 with the German Car Accessories GCA Performance ECU Tune designed for the D4 and D4.5 platforms. Engineered with a performance-first calibration strategy, this ECU tune transforms throttle response, torque delivery, and overall drivability for a significantly sharper and more engaging driving experience.
Optimized for the 4.0L TFSI twin-turbo V8 engine, this tuning solution delivers substantial horsepower and torque gains while improving mid-range acceleration and top-end pull. The result is a more dynamic, responsive, and performance-focused luxury sedan without compromising OEM-level comfort.
GCA Performance ECU tuning securely stores your factory ECU data, allowing the vehicle to be fully reverted back to stock settings at any time. This ensures flexibility for servicing, resale, or personal preference adjustments.
Specifically developed for 2013-2018 Audi A8 and S8 D4/D4.5 models, this tune supports both Stage 1 and Stage 2 configurations depending on supporting hardware. Engineered for consistent performance gains and refined power delivery across the rev range.
German Car Accessories backs all tuning products with a 1-Year Warranty and provides full installation instructions after purchase.
Key Features
- Genuine German Car Accessories GCA Performance ECU Tune
- Designed for Audi A8/S8 D4 & D4.5 (2013-2018)
- Optimized for 4.0L TFSI twin-turbo V8 engine
- Significant horsepower and torque increase
- Sharper throttle response and drivability
- Stronger mid-range and high-end performance
- Octane-specific calibration
- Factory speed governor removal for unrestricted performance
- Enhanced exhaust acoustics with optional burble tuning
- Adjustable cold start behavior (On/Off)
- Downpipe-ready calibration (off-road use only)
- Stage 1 and Stage 2 tuning options available
- Fully reversible back to stock ECU settings
- 1-Year Warranty included
Specifications
- Brand: German Car Accessories
- Product Type: ECU Performance Tune
- Platform: D4 / D4.5
- Engine: 4.0L TFSI Twin Turbo V8
- Installation Method: ECU Flash / Remote Programming
- Reversible: Yes (Stock file restore supported)
- Warranty: 1-Year Warranty
Fitment
- Audi A8 D4 (2013–2017) 4.0T
- Audi A8 D4.5 Facelift (2015–2018) 4.0T
- Audi S8 D4 (2013–2018) 4.0T
