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- APR ECU Upgrade - 5.0T EA824 V10 (RS6)
APR ECU Upgrade - 5.0T EA824 V10 (RS6)
Fits 4.0T EA824 V10 engiens found in ROW market C5 RS6 vehicels
APR ECU Upgrade - 5.0T EA824 V10 (RS6)
Fits 4.0T EA824 V10 engiens found in ROW market C5 RS6 vehicels
Features:
- Horsepower - More horsepower throughout the whole rpm band
- Torque - More torque throughout the whole rpm band
- Fuel Grades - Multiple octanes from which to choose
- Acceleration - Accelerate faster with more power and reduced throttle lag
- Brake Boosting - Left foot braking or brake boosting added
- Speed Limiter - Go as fast as you want with the speed limiter out of the way
- Economy - While cruising, or driving normally, your fuel economy may benefit from our optimized calibration
- Direct Port Programming - Clean and easy install through the OBD II port without removing the ECU
- Free Updates - Get free updates for life
- Guarantee - 30 day money back guarantee
Brand | APR |
---|---|
Engine Aspiration | Turbocharged |
Engine Configuration | V10 |
Engine Displacement | 5.0L |
Engine Family | EA824 V10 |
Engine Orientation | Longitudinal |
Fuel Type | Gasoline |
Install Type | APR Dealer (Software Price Shown) |
Market | ROW |
Product Type | ECU Upgrade |
Part Number | ECU-50T |
Important fuel quality information
Find your boxcode and revision
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APR ECU Upgrade Stages
Our ECU Upgrades are available in multiple configurations. Installation of additional performance hardware, such as an intercooler or intake systems, may provide further performance improvements.
APR Stage 1
The APR Stage 1 ECU Upgrade is the first step towards tuning your engine. It produces up to 665-741 HP and 716-779 FT-LBS of torque.
APR Stage 1 is available for 95 RON, 98 RON, and 104 RON in the Rest of the World.
Horsepower and Torque Dyno Charts
Select a Dyno | Select a Dyno Type |
---|---|

Only use fuel equal to or higher than specified. Never use a lower octane fuel. Always follow our fuel guide, especially with race fuel and Ethanol, where available. Dynos are for reference only. Results will vary. Contributing factors include the vehicle condition, vehicle setup, dyno type, dyno setup, environmental factors, fuel quality, and more. When describing fuels, the North American Region (NAR) uses the Anti-Knock Index (AKI), (RON+MON)/2, or (R+M)/2. The Rest of the World (ROW) uses RON. RON is Research Octane Number and MON is Motor Octane Number.
APR Calibration Report
Stage | HP | TQ | HP Gain | TQ Gain |
---|---|---|---|---|
Stock as reported by Audi | 572 HP | 597 FT-LBS | ||
Stock as measured by APR | 480 HP | 507 FT-LBS | ||
Stage 1 | ||||
98 RON | 665 HP | 716 FT-LBS | +174 HP | +237 FT-LBS |
104 RON | 741 HP | 779 FT-LBS | +237 HP | +299 FT-LBS |
Acceleration Testing
The APR Difference

Who we are - We’re a global automotive engineering firm nestled in Opelika, Alabama. Our 80,000ft² state-of-the-art facility is home to some of the best engineers in the industry, who have mastered hundreds of engine management systems. We have multiple engine and chassis dynos, and the resources necessary to create our ECU Upgrades in-house, from the ground up! We're not a new company either. We've been around since the 90's and we have a strong financial backing to ensure we'll be here to support you for decades to come!
What we do - We optimize everything to make your engine more powerful. We adjust air-fuel ratios, advance ignition, increase boost pressure, alter cam positions and lift profiles, and more, all depending on the type of engine and management system, of course! We don’t take shortcuts, and we don’t take risks. We do it the right way.
How we differ - With our proprietary calibration and direct ram access data logging tools and operating system code changes, we’re able to make some of the strongest and fastest ECU upgrades, without needing costly end user adjustments. We work with the ECUs intelligent modeling and closed-loop systems, and beta test in multiple environments to create upgrades that work no matter where you drive!
APR Software Pricing Guide
Our performance software upgrade is available in multiple stages with optional features.
APR Stage 1 | |
---|---|
APR Stage 1 ECU Upgrade | $999.95 |
Purchasing, Guarantee, and Updates
Purchasing Options¹: Locate an APR Dealer. They will physically install software on your vehicle at their location. Alternatively with the APR Remote Tuning Service (RTS) you'll purchase an APR Tuning Cable and we, or a participating dealer, will remotely install software on your vehicle†.
Money-Back Guarantee: Try our Software Upgrades for up to 30 days, risk free! If you are not satisfied, have it removed and refunded.²
Free Updates: If we make an update, add a standard feature, or if the manufacturer issues an update, you are entitled to a free update.³
1. Availability: APR Software may not be available for all vehicles. Stages, programs, and features may not be available for all ECUs.
2. Money Back Guarantee: Excludes some Software Upgrades, such as those included with a hardware purchase. Labor charges are at the discretion of the installer.
3. Free updates: Subject to availability. Labor charges are at the discretion of the installer. Applicable to the original purchaser. Second hand owners may inquire with an APR Dealer about a software license transfer fee.
†. Remote flashing: Excludes APR Plus. Excludes some platforms. Dealer participation will vary. Visit our product page for details.
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*Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.
Some parts are not legal for use in California or other states with similar regulations.