Integrated Engineering

IE Audi 2.5T 5 Cylinder Turbo Performance ECU Tune | Fits 8V RS3 & 8S TTRS IESOVO21 - VAR-IESOVO21

IE Audi 2.5T 5 Cylinder Turbo Performance ECU Tune | Fits 8V RS3 & 8S TTRS IESOVO21 - VAR-IESOVO21

Regular price $699.99 USD
Regular price Sale price $699.99 USD
Sale Sold out

Quick and easy to tune your car at home

You must purchase an IE POWERlink Direct-port Flash Tool to flash your vehicle


  • Stage 1 & Stage 2 files available to match any level of bolt-on parts

  • Horsepower & torque gains maximized, especially in the mid-range

  • 91, 93, 100, 104, and ethanol E85 fuels available at no extra cost

  • Stock boost controloptimized for a smoother driving experience

  • Rev limiter increased to 7200 RPM in manual mode or with DSG flash

  • Quick and easy to tune your car at home

  • Exhaust flaps programmed to open under boost

  • Launch control boost pressure increased for faster starts

  • Increased rev limiters (transmission stock shift points remain)

  • Road speed limiters removed

  • Boost safely reduces as engine temps increase for engine life

  • POWERlink allows file and octane switching in less than 2 minutes

  • Annoying cold start rattle eliminated

  • Engineered for all climates and elevations

  • Simple data logging for diagnosis purposes

  • Flash backto stock at any time


Choose Your Stage

IE Tunes for your Audi RS 2.5 TFSI engine are available for Stage 1 stock hardware setups or with modified hardware for Stage 2. Read below to determine the best stage for your build!

Add Your PowerLink

In order to flash your vehicle, you will need an IE POWERlink Direct-port Flash Tool (sold separately) and a Windows 7+ powered laptop. Already own an IE POWERlink cable? Contact us to purchase upgrade credits, there is no fee to upgrade tunes and you only pay the difference in tune cost.

Flash Your Car

Follow the link provided with your IE POWERlink Flash Tool to download our Flash Wizard software and follow the on-screen directions to tune your RS3 or TTRS in a matter of minutes!


IE's motorsport-inspired ECU calibration retunes your engine to fully release the complete performance potential from your Audi RS without sacrificing reliability or comfort. Getready to experience IE's Performance Software For your Audi 2.5T 5 cylinder engine in only minutes while enhancing the refined factory feel enthusiasts love. Impressive gains are realized on stock cars or take it to super-car levels on Stage 2 with upgraded hardware. The software can be installed in minutes from the comfort of your home garage or driveway.


Stage 1

The IE Stage 1 ECU Tune is precisely calibrated to make the most of your stock Audi 2.5T. Power gains are delivered smoothly across the entire powerband and many performance features have been added. Enthusiasts will have the choice between several fuel octanes (91, 93, 100, 104) and the ability to flash back to stock within minutes. As another added benefit the IE Stage 1 Tune has been designed to adapt to minor bolt-on modifications, such as an intercooler or intake.

  • Stage 1 recommended hardware
  • -IE Cold Air Intake(recommended)

Stage 2

Our Stage 2 ECU tune is designed for matching bolt-on hardware for when you are ready to release every last ounce of power from your stock turbo 2.5T engine. Stage 2, when matched with performance downpipe, intake, and intercooler, will deliver up to 577HP and592BTQ delivering record-breaking power and the ability to run 10's in the quarter mile (location and conditions depending)! You have your choice of pump fuel octanes 91, 93, 100, and 104. If you're real power hungry, Stage 2 also includes ethanol fuel E60-E85. Get ready to experience the true power monster that has been hiding under the hood of your 8V RS3 or TTRS!

  • Stage 2 required & recommended hardware
  • -Performance Intercooler(required)
  • -IE Performance Downpipe(required)
  • -IE Performance Turbo Inlet (highly recommended)
  • -IE Cold Air Intake(highly recommended)


All available tune stages include various octanesat no extra cost. Using the IE POWERlink cable you can switch between octanes as needed. You can load high octane files for race day and run regular pump octane on your daily commute and save at the pump.


  • 91 octane

  • 93 octane

  • 100 octane

  • 104 octane


  • 91 octane

  • 93 octane

  • 100 octane

  • 104 octane

  • E60-E85 ethanol*

*The stage 2 optional ethanol file is for use with full ethanol E60-E85. E85 is recommended for the highest power output, however, our tune offers you many safeguards to run lower ethanol such as E60, E70, E75, etc... This flexibility offers you to safely fill up at the pump on a single tune. During development, testing showed that many pumps advertising E85 came back lower than advertised and some states offering ethanol did not offer full E85 or above. Your tune will safely moderate ethanol between E60 through E85 only when the IE ethanol file is loaded to your ECU.


IE's own in-house developedPOWERlinkcable gives you the control to unlock your engine's true potential from your own garage or driveway. Enjoy the freedom to quickly reflash your car's engine control unit (ECU) or transmission control unit (TCU) with IE's line of performance tunes. The cable simply plugs into your vehicle's OBD-2 port delivering instant access to choose different IE Tune stages to match installed hardware, take advantage of different fuel octanes,flash backto stock, perform engine diagnostics, read/clear codes and gather high-quality operating data via logging.


  • AUDI - RS3 8V/MK3 2.5T ENGINES (2017+)

  • AUDI - TTRS 8S/MK3 2.5T ENGINES (2016+)

Electrical/Electronic parts are non-returnable.
View full details