IE VW & Audi 2.0T TSI Gen 3 IS38 MQB Performance ECU Tune | Fits MK7 Golf R, 8V S3, & 8S TTS



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  • Horsepower & torque gains maximized
  • Stock boost control optimized for all conditions
  • 91, 93, 104, & Ethanol octanes available (95, 98, 108 RON & E)
  • IE TrueFlex tune adapts from 91 pump all the way to full E85
  • Optional Exhaust Crackle feature
  • Rev limiter increased to 7000 RPM with DSG flash
  • Brake boosting enabled
  • Launch control torque increased for faster launches
  • Road speed limiters removed
  • Includes optional High Torque & Low Torque files
  • Engineered for all climates and elevations
  • Direct port OBDII at-home flashing
  • Easy octane switching takes only minutes
  • Upgrade stages to match hardware upgrades
  • Simple on/off feature toggling with POWERlink
  • Read and clear diagnostic/problem codes
  • Easy to use Data-logger


To take advantage of the new larger power band, factory rev limits have been raised to 7000RPM in all stages. On DSG equipped cars, the transmission will shift slightly before the new engine RPM (6900RPM).


E85 fuel unlocks the most performance potential from our ECU tunes for your Golf R or S3 Gen 3 engine. Ethanol contains tons of oxygen, burns cooler, and has a high resistance to knock. This provides more horsepower and torque than running conventional gasoline and is more readily available (in most states) and less expensive than race gas. IE TrueFlex tunes take this a step further and allow for 91 octane all the way up to full E85 or anything in between on one tune without the need to reflash! TrueFLex is an included option with stage 2 tunes.


Commonly used in roll racing, Brake Boosting allows you to build extra boost by applying brake pressure while accelerating. Release the brake pressure for a “rolling launch” or extra surge of power.


IE’s number one goal from purchase to installation is to provide you with the best customer experience in the industry. We want what you want; a simple purchase process, products that exceed expectations, and a brand that’s got your back. If at any point you have any questions, need help, or require support with your new tune our educated customer support team and tuning specialists are standing by and happy to help. Purchasing an IE tune not only guarantees a quality product, but that you will always have us in your corner.


Your tune purchase entitles you to free updates to any tune revisions, new octanes, standard features, or software updates. In the event the original vehicle manufacturer issues an ECU update, this will also be included to you through IE at no additional charge.

Have multiple cars in the family or friends that are also ready for an IE Tune? Your POWERlink Flash Tool can be used on up to 5 different vehicle VINs. Tunes sold separately.

Once a tune purchase is applied to your vehicle’s ECU, the tune is permanently registered to the vehicle and non-transferable to other vehicles. Tunes can be transferred to a second party in the event of vehicle transfer of ownership only.

Although IE does offer ROW purchases of software files, some ECUs available only in certain countries or markets may not be supported in our current file library. If you have access to read your ECU code, please contact us to verify compatibility before purchase.

Additional information


Stage1, Stage2


Integrated Engineering


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