APR

APR ECU Upgrade - 3.0T EA837 V6 (Simos 8.4)

Fits 2010-2012 Audi S4, S5

Part # ECU-30T-EA837-SIM84
1 Review

APR ECU Upgrade - 3.0T EA837 V6 (Simos 8.4)

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$599.95
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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.

Features:

  • Horsepower - More horsepower throughout the whole rpm band
  • Torque - More torque throughout the whole rpm band
  • Program Switching - Change programs and access features with your cruise control stalk (Stage 1 Only)
  • APR Mobile - Change programs and access features with your smart device (Stage 1 Only)
  • 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
  • Stages - Multiple performance levels depending on installed hardware
  • 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
  • Rev Limiter - Increased redline for higher revving
  • Standing Limiter - Increased standing limiter for higher revving at idle
  • Motorsport Limiter - With the soft limiter removed, you‚Äôll get full power right up to the hard, ‚Äúbap bap bap‚Äù redline fuel cut
  • Economy - While cruising, or driving normally, your fuel economy may benefit from our optimized calibration
  • 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 AspirationSupercharged
Engine ConfigurationV6
Engine Displacement3.0L
Engine FamilyEA837
Engine OrientationLongitudinal
Fuel TypeGasoline
MarketNAR
ROW
Product TypeECU Upgrade
Part NumberECU-30T-EA837-SIM84
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.

Have a question about this product?

  • Question

    Is this simply a plug and plaything or do you need to download apps or take it somewhere?

    By dean ernsperger on April 4, 2023

    Answer
    Dealer will install it to your factory computer. No app or setting changes needed.
    Helpful?
  • Question

    How to I get the APR mobile app. I had an APR dealer install stage 1 a couple of years ago and upgraded to dual pulley, ECU + TCU code + heat exchanger last September. It would be helpful to see which program is in use and what I can switch to.

    By Peter Schvarcz on February 26, 2023

    Answer
    https://apps.apple.com/us/app/apr-mobile/id745783884
    Helpful?
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APR ECU Upgrade Stages

Our ECU Upgrades are available in multiple configurations. Installation of additional performance hardware, such as a cooler 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 427-462 HP and 370-387 FT-LBS of torque.


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

APR Stage 2

The APR Stage 2 ECU Upgrade is the next step towards tuning your engine. It produces up to 437-527 HP and 386-469 FT-LBS of torque. Use this tune with an APR Single or Dual Pulley Upgrade.


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

APR Stage 2 Plus Ultra

The APR Stage 2+ Ultra ECU Upgrade is the next step towards tuning your engine. It produces up to 478-542 HP and 426-472 FT-LBS of torque. Use this tune with an APR Ultracharger and Dual Pulley Upgrade. APR Spark Plugs are recommended.


APR Stage 2+ Ultra is available for 91 AKI, 93 AKI, 100 AKI, and 104 AKI in North America, and 95 RON, 98 RON, 104 RON, and 108 RON 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 333 PS 325 FT-LBS
Stock As Measured by APR 359 HP 350 FT-LBS
Stage 1
91 AKI / 95 RON427 HP 370 FT-LBS +84 HP +61 FT-LBS
93 AKI / 98 RON441 HP 375 FT-LBS +98 HP +72 FT-LBS
100 AKI / 104 RON458 HP 385 FT-LBS +115 HP +84 FT-LBS
104 AKI / 108 RON462 HP 387 FT-LBS +119 HP +87 FT-LBS
Stage 2 Single Pulley
91 AKI / 95 RON437 HP 386 FT-LBS +94 HP +68 FT-LBS
93 AKI / 98 RON455 HP 395 FT-LBS +112 HP +82 FT-LBS
100 AKI / 104 RON473 HP 404 FT-LBS +130 HP +95 FT-LBS
104 AKI / 108 RON480 HP 409 FT-LBS +138 HP +100 FT-LBS
Stage 2 Dual Pulley
91 AKI / 95 RON445 HP 412 FT-LBS +100 HP +80 FT-LBS
93 AKI / 98 RON465 HP 428 FT-LBS +120 HP +97 FT-LBS
100 AKI / 104 RON513 HP 459 FT-LBS +168 HP +126 FT-LBS
104 AKI / 108 RON527 HP 469 FT-LBS +182 HP +136 FT-LBS
Stage 2+ Ultra
91 AKI / 95 RON478 HP 426 FT-LBS +133 HP +97 FT-LBS
93 AKI / 98 RON498 HP 441 FT-LBS +154 HP +112 FT-LBS
100 AKI / 104 RON530 HP 464 FT-LBS +185 HP +135 FT-LBS
104 AKI / 108 RON542 HP 472 FT-LBS +196 HP +143 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.

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 - Weโ€™re a global automotive engineering firm nestled in Opelika, Alabama. Our 80,000ftยฒ 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 donโ€™t take shortcuts, and we donโ€™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, weโ€™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$599.95
APR Stage 2
APR Stage 2 ECU Upgrade$749.95
APR Stage 2 ECU Upgrade from Stage 1$149.95
APR Stage 2+ Ultra
APR Stage 2+ ECU Upgrade$899.95
APR Stage 2+ ECU Upgrade with New Ultracharger$749.95
APR Stage 2+ ECU Upgrade from Stage 1$449.95
APR Stage 2+ ECU Upgrade from Stage 1 with New Ultracharger$149.95
APR Stage 2+ ECU Upgrade from Stage 2$299.95
APR Stage 2+ ECU Upgrade from Stage 2 with New UltrachargerFREE
Optional Features
Program Switching$99.95

Purchasing, Guarantee, and Updates

Purchasing Optionsยน: 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 vehicleโ€ .


Money-Back Guarantee: Try our Software Upgrades for up to 30 days, risk free! If you are not satisfied, have it removed and refunded.ยฒ


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.ยณ


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.
โ€ . Remote flashing: Excludes APR Plus. Excludes some platforms. Dealer participation will vary. Visit our product page for details.
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