APR 3.0T ECU Upgrade for the Audi B9 S4, S5, and SQ5

APR ECU Upgrade for 3.0T S4 B9 and S5 Audi

APR 3.0T ECU Upgrade for the Audi B9 S4, S5, and SQ5

This the software upgrade everyone has been anxiously waiting for!!!

After extensive research and testing, APR has finally cracked the super complicated Audi Bosch MG1 ECU to unlock incredible power. We’re excited to announce that the Software and engine tuning upgrade is now available for the 3L TFSI engine in the Audi S4 B9, S5, and SQ5 Platforms.


Audi MG1 ECU upgrade Power numbers

APR’s ECU Upgrades are the best dollar-per-horsepower modification that can be made to the 3.0T engine of the EA839 model family. The new suite of MG1 ECU software comes after months of extensive research and development that is typically absent from the aftermarket.  This ECU is powerful and extemely difficult to master.  APR’s engineers were able to take advantage of everything the ECU has to offer without disabling its safety protection features for your engine. The upgrade makes the engine more powerful and more exciting. APR extensively calibrated the system to work flawlessly on the track, while retaining safety routines to protect your engine in the most demanding scenarios. This was all made possible by their engineering team’s pursuit of perfection. Development vehicles were outfitted with additional sensors, including turbo shaft speed sensors, thermocouples, transducers, and more, along with high speed direct RAM logging equipment, to feed valuable data to the team for analysis. After many track days, acceleration tests, and dyno sessions, they created new calibrations that are fine tuned for several octanes, including ethanol, and contain hundreds of map changes, with a vast array of safety features built in.

APR Tuning Products for Audi, VW, and Porsche

Audi 3.0L TFSI EA839 engine APR Tuning ECU Upgrade

Phone: 408-831-3730


At Sprint Motorsports, we take pride in caring for our customers, and are invigorated by the opportunity to provide competent and comprehensive automotive repair services. Spint Motorsports is the Best Auto Repair shop in San Jose for your Audi, Porsche, and VW performance upgrades and products.

To schedule an appointment for APR performance software, products, and installation for Audi, VW and Porsche or for any auto repair, major or minor car service, and other performance upgrades please contact service@sprint-motorsports.com or 408-831-3730. We welcome you to stop by our auto repair shop at 2099 S 10th St, Unit 40, San Jose, CA 95112. If you have any questions about your car’s performance, maintenance or repair issues, ask our friendly and expert staff for assistance.