APR

APR ECU Upgrade - 4.0T EA824 V8 (S8)

Fits 2013-2018 Audi S8

Part # ECU-40T-EA824-S8 Be the first to write a review

APR ECU Upgrade - 4.0T EA824 V8 (S8)

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$799.95
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APR's ECU Upgrades are the best dollar-per-horsepower modification one can make to improve engine performance. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR's optimization of the factory engine management system to take full advantage of the engine's capabilities, without needing any end user adjustment. The ECU Upgrades are available with various features and supported octane levels and each stage is compatible with most typical bolt-on modifications. The software is installed to the vehicle's factory ECU through the OBD-II port, resulting in a clean and headache-free install. Furthermore, for those looking for tuning with a limited powertrain warranty, APR Plus has you covered!

Features:

  • Horsepower - More horsepower throughout the whole rpm band
  • Torque - More torque throughout the whole rpm band
  • Warranty - APR Plus is available, providing a factory term limit matching limited powertrain warranty
  • Program Switching - Change programs and access features with your cruise control stalk
  • APR Mobile - Change programs and access features with your smart device
  • Valet Mode - Neuters the vehicle, giving the driver minimal output
  • Anti-Theft - Password protects driving the vehicle
  • Security Lockout - Password protects program switching
  • Fault Code Erase - Resets ECU fault codes and adaption on the fly
  • COD Delete - Optionally disable Cylinder On Demand to keep the engine running smoothly in full cylinder mode all the time
  • 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
  • Motorsport Limiter - With the soft limiter removed, you‚Äôll get full power right up to the hard, ‚Äúbap bap bap‚Äù redline fuel cut
  • Flash Counter - Flash counter does not increase with each flash
  • 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 AspirationTurbocharged
Engine ConfigurationV8
Engine Displacement4.0L
Engine FamilyEA824 4.0T
Engine OrientationLongitudinal
Fuel TypeGasoline
MarketNAR
ROW
Product TypeECU Upgrade
Part NumberECU-40T-EA824-S8
Important fuel quality information
Important fuel quality information
Find your boxcode and revision
Find your boxcode and revision
Program switching guide
Program switching guide
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.

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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 646-692 HP and 656-713 FT-LBS of torque.


    Stage 1 is available for 91 AKI, 93 AKI, 100 AKI, and 104 AKI in North America, and 95 RON, 98 RON, 104 AKI, and 108 AKI in the Rest of the World.

    APR Plus

    APR Plus is our APR Stage 1 ECU Upgrade with our limited powertrain warranty and it’s the first step towards tuning your engine. It produces up to 646 HP and 656 FT-LBS of torque. Please check our warranty manual to understand modifications supported by APR Plus.

    APR Stage 2

    The APR Stage 2 ECU Upgrade is the next step towards tuning your engine. It produces up to 672-710 HP and 691-751 FT-LBS of torque.


    APR Stage 2 is available for 91 AKI, 93 AKI, 100 AKI, and 104 AKI in North America, and 95 RON, 98 RON, 104 AKI, and 108 AKI in the Rest of the World.

    Horsepower and Torque Dyno Charts

    Select a DynoSelect a Dyno Type

    APR Calibration Report

    StageHPTQMax GainMax Gain
    Stock As Reported by VAG 520 PS 481 FT-LBS
    Stock As Measured by APR 577 HP 556 FT-LBS
    APR Plus
    91 AKI646 HP 656 FT-LBS +121 HP +134 FT-LBS
    Stage 1
    91 AKI / 95 RON646 HP 656 FT-LBS +121 HP +134 FT-LBS
    93 AKI / 95 RON667 HP 697 FT-LBS +146 HP +174 FT-LBS
    100 AKI / 104 RON692 HP 713 FT-LBS +171 HP +191 FT-LBS
    Stage 2
    91 AKI / 95 RON672 HP 691 FT-LBS +147 HP +168 FT-LBS
    93 AKI / 95 RON688 HP 727 FT-LBS +173 HP +204 FT-LBS
    100 AKI / 104 RON710 HP 751 FT-LBS+199 HP +228 FT-LBS
    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.

    Acceleration Testing

    Dyno testing is a great way to gauge power increases over the entire rev range but may not translate to real world performance. Through GPS based acceleration testing, APR’s Engineers were able to verify increases made on the dyno translated to a faster and quicker vehicle on the street.

    Stage0-60
    MPH
    0-62
    MPH
    0-100
    KPH
    0-100
    MPH
    60-120
    MPH
    62-124
    MPH
    100-200
    KPH
    60-130
    MPH
    30-130
    MPH
    1/4m
    60 FT
    1/4m
    ET
    1/4m
    MPH
    Stock3.759 3.950 3.963 8.723 8.794 9.667 9.729 11.473 13.594 1.837 11.909 116.76
    APR STG 1 93 AKI3.387 3.5423.5527.489 7.257 7.841 7.882 9.27110.978 1.769 11.174 123.01
    APR STG 1 100 AKI3.212 3.362 3.373 7.033 6.626 7.300 7.344 8.777 10.423 1.74810.937 126.31

    Program switching allows you to access additional program modes and features from your cruise control stalk or your smart device with APR Mobile. Depending on the ECU, available memory, and selected options, up to four program modes and all features, can be installed.


    • Stock Mode - Go back to the stock power levels.
    • Performance Modes - Switch between octanes and program modes.
    • Valet Mode - Neuters the vehicle, giving the driver minimal output.
    • Security Lockout - Password protects program switching.
    • Anti-Theft - Password protects driving the vehicle.
    • Fault Code Erase - Resets ECU fault codes and adaptation.

    APR Mobile

    APR Mobile installs on smartphones, tables and other devices, and connects wirelessly to your ECU. The app can then be used to access features such as program switching, fault code reading and resetting, and high speed data logging.

    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 Plus
    APR Plus ECU Upgrade $1,599.95
    APR Stage 1
    APR Stage 1 ECU Upgrade$799.95
    APR Stage 1 ECU Upgrade from APR PlusFREE
    APR Stage 2 (Excludes USA)
    APR Stage 2 ECU Upgrade$999.95
    APR Stage 2 ECU Upgrade from APR Plus or Stage 1$199.95
    Optional Features
    Program Switching$99.95

    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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