Product Features

• 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 control entirely reworked for a much 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 automatically reduces as engine temps increase, ensuring engine safety

• 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 back to stock at any time

IE Audi MK3/8V RS3 (2017+) Performance Tune

In Stock

IE Direct-Port Flash Tool   +$149.99

* Required Fields

Price as configured: $0.00

IE Performance Software For Audi RS3 8V unlocks your RS3’s performance potential while enhancing the refined factory feel enthusiasts love. Impressive gains are realized on stock cars as well as Stage 2 cars with upgraded hardware. The software can be installed in minutes from the comfort of your home garage or driveway.  

Product Summary



IE’s Performance Tune for RS3 packs a punch both in performance gains and in additional features. The end result is not only high performing software but a performance solution that does it safely! IE’s calibration engineers have taken several steps to ensure the smooth and safe operation by maintaining factory safety limits, or “fail safes”, resulting in reliability. As a final step, the software has been calibrated in test environments that ensure smooth operation in all types of climates and elevations.



Click on the Power Gains tab to view dyno charts.



The IE Stage 1 ECU Tune is precisely calibrated to make the most of your stock Audi RS3. 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 


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 and  592BTQ 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.  

Note on Stage 2 Ethanol File:
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 developed POWERlink cable 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 back to stock, perform engine diagnostics, read/clear codes and gather high-quality operating data via logging.

Simply plug your IE POWERlink cable into your RS3’s OBD-II port and the USB port on your Windows-powered laptop to use the included IE Flash Wizard software.
Upgrading to Stage 2 or beyond is easy! You only pay the difference in cost between the files with no additional or hidden fees. Upgrade at any time.

Many IE Tunes have multiple options available for you to take advantage of higher octanes. Gain big power by flashing 93, 100, or 104 octane versions of your file.

Easily gather simple to read ECU data for fast troubleshooting with our pre-loaded data logging option.

Have a friend with a compatible VW or Audi? Share the power with up to 5 different cars with a single cable. Just add enough credits to your cable for the desired tune and power-up your entire crew.

With the IE POWERlink, you can return your vehicle back to 100% original ECU programming at any time.

IE will always provide free software updates as they become available and easily reflashed through your IE POWERlink cable. 

Laptop or tablet with Wifi connection and USB port running Windows 7 or above operating system required. Powered by 32 or 64 bit processor with 1.0GHz or greater and 4GB of Ram.



IE's own easy to use Flash Wizard Software allows the IE POWERlink Tool to communicate with your vehicle's ECU to flash software tunes, upgrade, update, data log, or read/write codes. The software download is included with your tune/cable purchase and operates on any Windows 7+ powered laptop or tablet. The software is very simple to use and once installed will walk you through the fast tuning process to deliver instant horsepower. 




After completely reverse engineering the factory ECU, our engineers use our in-house Dynapack DP42 dynamometer to perform repeated runs to test each change that is made to the software and confirm drivability in any situation. This ensures IE performance software delivers massive horsepower and torque increases across the entire powerband. Using our in-house dyno and advanced tuning tools, IE engineers have fully optimized every aspect of the factory ECU mapping on many different vehicles. This produces a tune that retains all factory like driving and safety protocols when needed, and an intense surge of power when you want it.

The factory ECU speed limiter has been removed to make sure the increased power and torque can be used to its full potential on straightaways and drag strips.

With the significant power increase, the rev limiter is also increased to allow a wider powerband on all IE Audi RS3 files. By increasing the rev limit, you gain a perfect match for the increased performance available from your new IE performance software tune.

To further increase the responsive feel of the car, IE engineers have carefully adjusted the throttle sensitivity. This offers a more connected feeling to your car with plenty of power available right beneath your foot.

All IE tunes have been adjusted to run as economically as possible, dialing in air/fuel ratios to exactly where they need to be. With an IE performance ECU flash, it is common to see increased fuel economy under cruising and part-throttle driving.

Power charts




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

IE Stage 1 required hardware:

  • None, optimized for stock hardware


IE Stage 1 recommended hardware:

  • IE Cold air intake - IE part number: IEINCQ1

  • IE performance FDS Intercooler COMING SOON


IE Stage 2 required hardware:

  • IE performance FDS Intercooler - (IE part number COMING SOON!)

  • IE Cold air intake - IE part number: IEINCQ1

  • IE Performance Downpipe - (IE Part Number COMING SOON!)

Share your thoughts on this product Write a review
Write Your Own Review

You're reviewing: IE Audi MK3/8V RS3 (2017+) Performance Tune

How do you rate this product? *

 1 star2 stars3 stars4 stars5 stars
Product rating
Customers Who Bought This Item Also Bought
Need Some Sticker power? X

Get IE sticker-charged.

fill the required field below and we will send you a free high-quality color UV laminated IE sticker.

fill the required field below and we will send you a free high-quality color UV laminated IE sticker.fill the required field below and we will send you a free high-quality color UV laminated IE sticker.

fill the required field below and we will send you a free high-quality color UV laminated IE sticker.

By submitting your Email address you are signing up for the IE Mailing list. you may opt out at any time.