APR

APR ECU Upgrade - 3.0T EA837 V6 (Simos 8.5)

Fits 2012-2017 Audi A6, A7, A8, Q5, S4, S5, SQ5

Part # ECU-30T-EA837-SIM85 Be the first to write a review

APR ECU Upgrade - 3.0T EA837 V6 (Simos 8.5)

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Suggested Retail
$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. 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
  • 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-SIM85
Important fuel quality information
Important fuel quality information
Find your boxcode and revision
Find your boxcode and revision
APR Plus Warranty Booklet
APR Plus Warranty Booklet
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 it okay to run Apr Stage1 with only an upgraded intake?

    By Nash Bishop on February 27, 2023

    Answer
    Yes
    Helpful?
  • Question

    Is this CARB legal?

    By Shane M on May 2, 2023

    Answer
    Not yet
    Helpful?
  • Question

    I have had many cars with your tunes in them, I am looking to get another tune for an S4 I bought recently. I don't see any information about the EMCS/Program switching that was always offered. Is it still available? I always used the extra maps for track days and different fuels. Thanks!!

    By Carl Aloi on June 17, 2023

    Answer
    It's not available for this platform unfortunately.
    Helpful?
  • Question

    How much does it cost to get a stage 1 AKI / 95 RON

    By Luka Nenadic on February 28, 2023

    Answer
    $599.95
    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 433-465 HP and 364-385 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 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 433 HP and 364 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 448-527 HP and 381-471 FT-LBS of torque. Use this tune with an APR Single or Dual Pulley. APR Spark Plugs are recommended.


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 478-541 HP and 429-475 FT-LBS of torque. Use this tune with an APR Ultracharger, APR Single or Dual Pulley. 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

Stage (272/310/333/354)HPTQMax GainMax Gain
Stock As Reported by VAG 272 PS
310 PS
333 PS
354 PS
295 FT-LBS
325 FT-LBS 
325 FT-LBS
346 FT-LBS
Stock As Measured by APR 271 HP
309 HP
333 HP
361 HP
287 FT-LBS
321 FT-LBS
327 FT-LBS
364 FT-LBS
APR Plus
91 AKI / 95 RON433 HP 364 FT-LBS +147 HP
+106 HP
+124 HP
+52 HP
+119 FT-LBS
+86 FT-LBS
+90 FT-LBS 
+42 FT-LBS 
Stage 1
91 AKI / 95 RON433 HP 364 FT-LBS +147 HP
+106 HP
+124 HP
+52 HP
+119 FT-LBS
+86 FT-LBS
+90 FT-LBS 
+42 FT-LBS 
93 AKI / 98 RON444 HP 372 FT-LBS +159 HP
+117 HP
+134 HP
+63 HP
+128 FT-LBS
+95 FT-LBS
+98 FT-LBS 
+51 FT-LBS 
100 AKI / 104 RON459 HP 380 FT-LBS +171 HP
+129 HP
+150 HP
+76 HP
+138 FT-LBS
+105 FT-LBS
+109 FT-LBS 
+64 FT-LBS 
104 AKI / 108 RON465 HP 385 FT-LBS +174 HP
+133 HP
+155 HP
+79 HP
+141 FT-LBS
+107 FT-LBS
+113 FT-LBS 
+65 FT-LBS 
Stage 2 Single Pulley
91 AKI / 95 RON448 HP 381 FT-LBS +166 HP
+125 HP
+138 HP
+71 HP
+135 FT-LBS
+101 FT-LBS
+101 FT-LBS 
+58 FT-LBS 
93 AKI / 98 RON458 HP 387 FT-LBS +176 HP
+134 HP
+148 HP
+80 HP
+142 FT-LBS
+108 FT-LBS
+108 FT-LBS 
+65 FT-LBS 
100 AKI / 104 RON470 HP 398 FT-LBS +186 HP
+145 HP
+160 HP
+91 HP
+151 FT-LBS
+117 FT-LBS
+117 FT-LBS 
+74 FT-LBS 
104 AKI / 108 RON481 HP 406 FT-LBS +196 HP
+155 HP
+171 HP
+101 HP
+159 FT-LBS
+125 FT-LBS
+125 FT-LBS 
+82 FT-LBS 
Stage 2 Dual Pulley
91 AKI / 95 RON445 HP 415 FT-LBS +168 HP
+126 HP
+134 HP
+73 HP
+135 FT-LBS
+102 FT-LBS
+98 FT-LBS 
+87 FT-LBS 
93 AKI / 98 RON468 HP 432 FT-LBS +189 HP
+147 HP
+157 HP
+93 HP
+152 FT-LBS
+119 FT-LBS
+115 FT-LBS 
+104 FT-LBS 
100 AKI / 104 RON513 HP 461 FT-LBS +233 HP
+191 HP
+202 HP
+138 HP
+188 FT-LBS
+155 FT-LBS
+147 FT-LBS 
+130 FT-LBS 
104 AKI / 108 RON527 HP 471 FT-LBS +245 HP
+204 HP
+215 HP
+150 HP
+198 FT-LBS
+165 FT-LBS
+157 FT-LBS 
+140 FT-LBS 
Stage 2+ Ultra
91 AKI / 95 RON478 HP 429 FT-LBS +194 HP
+153 HP
+167 HP
+99 HP
+157 FT-LBS
+124 FT-LBS
+122 FT-LBS 
+96 FT-LBS 
93 AKI / 98 RON498 HP 444 FT-LBS +213 HP
+172 HP
+187 HP
+118 HP
+172 FT-LBS
+139 FT-LBS
+137 FT-LBS 
+111 FT-LBS 
100 AKI / 104 RON530 HP 467 FT-LBS +245 HP
+204 HP
+219 HP
+150 HP
+198 FT-LBS
+165 FT-LBS
+160 FT-LBS 
+136 FT-LBS 
104 AKI / 108 RON541 HP 475 FT-LBS +255 HP
+214 HP
+230 HP
+160 HP
+206 FT-LBS
+173 FT-LBS
+168 FT-LBS 
+144 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.

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$599.95
APR Stage 2
APR Stage 2 ECU Upgrade$749.94
APR Stage 2 ECU Upgrade from Stage 1$149.99
APR Stage 2+ Ultra
APR Stage 2+ ECU Upgrade$899.95
APR Stage 2+ ECU Upgrade with New APR Ultracharger$749.95
APR Stage 2+ ECU Upgrade from Stage 1$449.95
APR Stage 2+ ECU Upgrade from Stage 1 with New APR Ultracharger$149.95
APR Stage 2+ ECU Upgrade from Stage 2$299.95
APR Stage 2+ ECU Upgrade from Stage 2 with New APR UltrachargerFREE

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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