Description
Disclaimer : Cancellations within 24 hours are subject to a cancellation fee. After 24 hours, a higher fee will apply.
Engineered with a performance-first mindset, GCA Performance ECU tuning redefines how your Audi A3 or S3 responds, pulls, and accelerates. This isn't just added power—it is a complete transformation in drivability. Throttle input becomes immediate, torque delivery is stronger and more consistent, and the entire powerband feels sharper and more responsive.
From the mid-range surge to top-end pull, every part of the rev range is optimized to keep the vehicle pushing harder, longer, and more efficiently. Whether for daily driving or spirited performance use, this tune delivers a noticeable improvement in responsiveness and overall driving experience.
GCA Performance securely saves your factory ECU data, allowing you to revert your vehicle back to stock settings at any time.
We Stand Behind Our Products
All items from us come with a 1-Year Warranty.
Key Features
- GCA Performance ECU Tune for Audi A3 & S3 8Y platform
- Significant improvement in throttle response and acceleration
- Increased horsepower and torque output
- Stronger mid-range and top-end power delivery
- Stage 1 and Stage 2 tuning available
- Optimized boost, ignition timing, and fueling calibration
- Octane-specific tuning for maximum performance
- Factory speed governor removal for unrestricted performance
- Adjustable exhaust burble settings
- Cold start behavior fully configurable (On/Off)
- Downpipe readiness with check engine light suppression (off-road use only)
- Fully reversible tuning with stock file backup
- Remote tuning via included cable
- 1-Year Warranty included
Specifications
- Brand: German Car Accessories (GCA Performance)
- Product Type: ECU Tune / Engine Software
- Platform: Audi 8Y
- Engine: 2.0L Turbocharged TFSI
- Tuning Stages: Stage 1 & Stage 2 Available
- Reversible: Yes (stock file saved)
- Installation Method: Remote flashing via cable
- Warranty: 1-Year Warranty
Fitment
- Audi A3 8Y (2021-2026) 2.0T TFSI
- Audi S3 8Y (2021-2026) 2.0T TFSI
Tuning Gains
- Up to +50 Horsepower
- Up to +50 lb-ft Torque
Actual gains may vary depending on fuel quality, vehicle condition, and modifications.
Tuning Process
- Place your order
- Receive tuning instructions via email
- Connect supplied cable to vehicle
- Read factory ECU file
- Receive tuned file from GCA Performance
- Flash and enjoy upgraded performance
