APR Performance ECU Upgrade | C8 RS6 · RS7 | 4.0L Turbo V8

Unleash the True Potential of Your Audi RS6/RS7 Performance! We're thrilled to introduce APR's Engine Control Unit (ECU) Upgrades for the powerful 4.0 TFSI EA825 engine found in the Audi RS6 and RS7 Performance! With up to 795 HP and 864 FT-LBS of torque, this upgrade transforms your car into a performance powerhouse, delivering exhilarating power and unmatched driving excitement. Power. Precision. Protection. Our new ECU software is the result of months of meticulous engineering and real-world testing, far surpassing the typical aftermarket solution. By equipping our development vehicles with high-speed data loggers, turbo shaft speed sensors, thermocouples, and other precision instruments, we fine-tuned hundreds of parameters and corrected countless protection models across multiple octanes to achieve flawless performance, enhanced safety, and unmatched reliability. We're so confident in its reliability that we even offer an optional factory term-limit matching limited powertrain war