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APR

APR - Performance ECU Software - 4.0T EA825 V8 (4M) (SQ7/SQ8)

APR - Performance ECU Software - 4.0T EA825 V8 (4M) (SQ7/SQ8)

$1,499.95 USD
$1,499.95 USD $1,499.95 USD
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ECU-40T-EA825-4M-SQ

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OVERVIEW

We're excited to announce our Engine Control Unit (ECU) Upgrades are now available for the Audi SQ7 and SQ8 4.0 TFSI V8 engine with the Bosch MG1 ECU! Expect massive gains with up to 685-767 HP and 731-804 FT-LBS of torque on tap, depending on octane, from this simple software upgrade. 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:

  • Delivers up to 685-767 HP with 731-804 FT-LBS depending on octane
  • Max gains of +191-262 AWHP and +163-268 AWFT-LBS depending on octane
  • Supports 91 AKI, 93 AKI, 100 AKI, and 104 AKI fuel grades
  • Optional factory term limit matching limited powertrain warranty with APR Plus
  • Quicker and Faster: 12.59@108.86 MPH (Stock) 11.34@118.75 MPH (APR Stage 1 93)
  • Speed limiter removed
  • Standing RPM soft limiter increased
  • Left-foot braking / brake boosting added
  • Properly rescaled performance gauges
  • Optimized thermal management and protection
  • Optimized launch control strategy for faster response
  • Optimized driveline protection during launch
  • No hardware required (Software only)
  • Supports standard bolt on modifications
  • Eliminated the need for a TCU upgrade to achieve full torque
  • Flash counter does not increase with each flash
  • Free lifetime updates
  • Direct OBDII port flash (No ECU removal)
  • 30 day money back guarantee

APR Calibration Report

Stage HP TQ Max Gain Max Gain
Stock As Reported by Audi  500 HP 568 FT-LBS
Stock As Measured by APR 513 HP 591 FT-LBS
APR Plus
91 AKI / 95 RON 685 HP 731 FT-LBS +191 HP +163 FT-LBS
Stage 1
91 AKI / 95 RON 685 HP 731 FT-LBS +191 HP +163 FT-LBS
93 AKI / 98 RON 710 HP 751 FT-LBS +215 HP +202 FT-LBS
100 AKI / 104 RON 752 HP 786 FT-LBS +245 HP +248 FT-LBS
104 AKI / 108 RON 767 HP 804 FT-LBS +268 HP +262 FT-LBS

Important SFD Unlock Guide

Important fuel quality information

Find your boxcode and revision

APR Plus Warranty Booklet

2023+ model year vehicles may use SFD, requiring an extra tool to unlock ECU during each flash. 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. Please Note: Each vehicle's year, make, and model may have multiple factory engine or transmission controller software part numbers, known as box codes, each with unique revisions. Manufacturers periodically release software updates that alter this information, which can only be determined by scanning the controller and is not publicly provided. Due to the variety of codes, some stages, octane levels, features, or options may not be available for specific codes. Therefore, our website provides a general guide based on general info such as Year, Make, and Model. Our system allows you to request unavailable software, and we offer a 30-day money-back guarantee if you're not satisfied.