IE Performance Audi RS6, RS7, S8, SQ7, SQ8, & RSQ8 V8 EA825 – ECU Tune | TCU Tune

Take control of your Audi C8 4.0TT by unlocking thrilling power and acceleration from your phone! Our cutting-edge engine and transmission tunes transform your car through the innovative POWERlink Bluetooth dongle that plugs into your vehicle’s OBD II port. Our responsive mobile app links the dongle to your Apple or Android phone, giving you the power to tune your car, change octanes, upgrade stages, perform diagnostics, monitor live gauge data, and more —all from the palm of your hand!

iE Stage 1 C8 EA825 ECU calibration dramatically increases hidden performance with up to 828HP and 862ft-lbs! iE’s advanced tuning platform releases hidden power, maximizes the drive feel, boost delivery, throttle response, and powerband to completely transform your 4.0TT engine into a supercar powerhouse. Engineered to operate on entirely stock hardware or with an upgraded intake and intercoolers for the most performance.

See performance tab for full performance results & dyno reports

For the serious horsepower junky, iE’s Hybrid Turbo Tuning Suite has been designed for use with the bolt-in Pure900 turbochargers. Unlock supercar-level power and torque with remarkable transient response, minimal turbo lag, and an exhilarating pull all the way to the redline. This new power curve completely transforms your C8 4.0TT with true supercar power levels while maintaining everyday comfort during your daily drives.

• Massive power with minimal boost lag increase
• Includes 91, 93, & 104 octanes
• Boost/power/torque gauges rescaled
• Optimized hybrid turbo launch control
• Requires intake upgrade
• Requires turbo inlet upgrade
• Requires intercooler upgrade
• Requires Pure900 Turbochargers
• Requires iE 4 bar map sensors (x4)

• Easy mobile app install from your phone
• Horsepower & torque gains maximized
• Multiple fuel options included
• Stage 1 Transmission Tune included
• Harder and more aggressive launch strategy
• Brake boost enabled for rolling launch
• Recalibrated factory boost gauge displays higher boost
• Rescaled horsepower and torque gauge displays
• Gauge display needle animations smoothed (less glitchy)
• Auto start/stop reversed (button turns on instead of off)
• Neutral/park rev limit raised
• Enhanced exhaust overrun crackle in sport mode
• Maximized map scaling for dependable throttle use
• Boost control reconfigured for smooth and crisp power delivery
• Optimized EGT for safe fuel ratios and maximized power output
• Reduced turbocharger lag
• Road speed limiters removed
• Adaptive for all climates and elevations