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Get the details: APR ECU-40T-EA825-C8 APR ECU Upgrade - 4.0T EA825 V8 (C8)

We're excited to announce our Engine Control Unit (ECU) Upgrades are now available for the North American Audi RS6 and RS7 (C8) 4.0 TFSI engine with the Bosch MG1 ECU! Expect massive gains with up to 685-767 HP and 731-804 FT-LBS of torque on tap, depending on octane, from this simple software upgrade.

Our new suite of MG1 ECU software comes after months of extensive research and development that is typically absent from the aftermarket. Our upgrade makes the engine more powerful and more exciting. We’ve 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 our engineering team's pursuit of perfection. Development vehicles were outfitted with additional sensors, including turbo shaft speed sensors, thermocouples, transducers, and more, along with our high speed direct RAM logging equipment, to feed valuable data to the team for analysis. After thousands of hours of testing and tuning we created new calibrations that are fine tuned for several octanes and contain hundreds of map changes, with a vast array of safety features built in.


• Delivers up to 685-767 HP with 731-804 FT-LBS depending on octane
• Max gains of +112-210 AWHP and +145-225 AWFT-LBS depending on octane
• Supports 91 AKI, 93 AKI, 100 AKI, and 104 AKI fuel grades
• Optional factory term limit matching limited powertrain warranty with APR Plus
• Quicker acceleration
• Speed limiter removed
• Standing RPM soft limiter increased
• Left-foot braking / brake boosting added
• Properly rescaled performance gauges
• Optimized thermal management and protection
• Optimized launch control strategy for faster response
• Optimized driveline protection during launch
• No hardware required (Software only)
• Supports standard bolt on modifications
• Eliminated the need for a TCU upgrade to achieve full torque
• Free lifetime updates
• Direct OBDII port flash (No ECU removal)
• 30 day money back guarantee


More Dynos at the crank, wheels, and gain over stock are on the product page

Get the details: APR ECU-40T-EA825-C8 APR ECU Upgrade - 4.0T EA825 V8 (C8)
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