Audi (B9) RS5 / RS4 ECU Tuning Software

Disclaimer: This product is not compliant with the California Air Resource Board and not for use on public roads in California. This applies to any aftermarket product that does not display a CARB EO#. Power ratings are subject to conditions and dynamometer model used. Learn more > 

Software tuning provided is designed around the stock vehicle. Any major changes in airflow components such as high flow cats or enlarged throttle body diameters may require custom tuning optimization which VF does not include or provide.


    Audi B9 RS5

    Audi B9 RS4

    2.9 L TFSI V6 Twin Turbo EA839 

    2018 - Present


    ECU programming available via VF Engineering Dealer tool or ECU can be shipped in for a bench flash.

    Performance ECU Software








    Official Dyno Plot

    audi rs5 b9 dyno stage 1 ecu tuning software by vf engineering and hex tuning


Vf dealer tool OBD2 Tuning

Two-Step Process
  • This vehicle can be tuned through OBD2 port with a VF Dealer tool.
    (no wrenching required/ seamlessly load the tuned and stock files)
  • Call out Sales Department at +1 (714) 528-0066 to Locate a Dealer 

  • Schedule a time for a "Read Out" with the VF Dealer

  • Our Software Engineers will custom build your Tuned File

  • Notification when tune is ready for install


    Media Coming Soon



Customer Reviews

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Dealer/Consumer has educated and researched the pros and cons or modifying their vehicle with high performance parts such as superchargers. Customer understands that modifying their car bares certain risks including engine failure and both parties understand and agree to hold VF Engineering harmless of liability from installation and use of this product.

This product is not California Emissions Compliant or CARB approved. It is therefore NOT legal for use on public roads in the State of California or other states with similar laws. It is understood that you are installing this product / having specific labor performed on a pollution controlled vehicle. The dealer/consumer is not absolved of responsibility by means of ignorance and is hereby informed. By installing this product on your vehicle you assume all responsibility and consequences.

Supercharger Systems are considered special order, and not returnable without written consent by VF Engineering. Dealer is responsible for providing product disclosures/terms and conditions to their consumers.

Post installation of this product may require trouble shooting/diagnostics. Components and sensors near the limit of their wear tolerance may need replacement. VF-Engineering is not responsible for trouble shooting, diagnostic costs or consequential cost. The purchaser/reseller assumes the risks of modifying a used vehicle and educating themselves on the common traits of their platform. It is the reseller’s responsibility to educate the end user of these terms and conditions.

** Not CARB approved. Not legal for street use in State of California. For OFF-ROAD use only **