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United Motorsport Audi 8V RS3, 8S TTRS 2.5T Performance ECU Software

Special Order

Features of the United Motorsport Performance Tuning Software for the 2.5T EVO engine:

  • Increased horsepower and torque - By optimizing a number of engine software settings horsepower and torque can be increased.
  • Improved engine response - By optimizing a number of engine software settings engine response can be improved greatly.
  • Optimized power delivery - Just because UM added more power, doesn’t mean the car needs to become a handful to drive.
  • Improved fuel economy - Often times UM's performance improvements will also lead to improved fuel economy.

Customizable Tuning

United Motorsports has eliminated the need for traditional 'stage' engine tuning. As an evolution of their Mk6 Golf R 'Loaded' program, they have created adjustable tuning for the 2.5T EVO engine.

These software features allow United Motorsport engine software to be customized for you. Whether you have a manual trans and want to avoid burning up the clutch or you run specific fuel octane, United Motorsports has you covered!


  • Maximum boost pressure.
  • Octane.
  • Maximum boost pressure at launch.

Please Note: For those ordering online or over the phone: YOUR ECU WILL HAVE TO BE SENT IN FOR PROGRAMMING.

Once your order is placed, we will contact you with shipping instructions for your ECU.

Please note: if you select a Loaded tune, DSG or Haldex add-ons the vehicle must be present to perform upgrades. Only standard ECU programming can be performed for online/phone order ECU tunes.


Stock Turbo Software:

452 WHP / 454 FT-LBS

Hardware requirements: No hardware upgrades are required for the base software. 

E85 Stock Turbo Software:

507 WHP / 515 FT-LBS

Software/DSG Combo

Includes software tune and DSG tune at a discounted price (please contact us for details, car must be present to install DSG software).

Big Turbo/Hybrid Turbo/Custom Tuning:

United Motorsport has 2.5T EVO software available for several aftermarket turbochargers.

In addition, United Motorsport offers custom tuning for the 2.5T EVO engine. Please contact us for more details regarding custom ECU tuning for your Audi 8V RS3 or 8S TTRS.

Additional Custom Tuning Options:

  • Larger Injectors
  • Aftermarket HPFP
  • Water/Meth Tuning
  • E85 Tuning

Please contact us directly with any custom tuning requests you may have. Please note that custom tuning starts at $400 and can cost more. We will contact you with the total pricing before finalizing your order.


  • 2017-2020 Audi 8V RS3 2.5T
  • 2017-2020 Audi 8S TTRS 2.5T

Please note that United Motorsport tuning is designed to work with the factory downpipe.

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