IE Audi 4.0T V8 EA825 ECU Tune For C8 RS6, RS7, S8, SQ7, SQ8, & RSQ8

Unlock the performance potential of your Audi's twin-turbocharged V8 with the Integrated Engineering (iE) 4.0T V8 EA825 Performance ECU Tune, designed for compatible Audi C8 RS6, RS7, S8, SQ7, SQ8, and RSQ8 applications. Using the iE POWERlink Bluetooth tuning device and mobile app, this advanced tuning suite allows you to reprogram your engine control unit (ECU), access compatible performance calibrations, monitor engine data, and adjust supported settings directly from your Apple or Android smartphone.

Developed to enhance the factory engine calibration, the iE 4.0T tuning suite optimizes boost delivery, throttle response, and power delivery for a stronger, more responsive driving experience. Depending on the selected calibration, fuel, and hardware configuration, the system supports both factory-turbo setups and high-output builds equipped with upgraded Pure900 hybrid turbochargers.

Stage 1 ECU Tuning

The Stage 1 calibration is designed to unlock additional performance while retaining the factory turbochargers and existing hardware. Intake, turbo inlet, and intercooler upgrades are optional, with additional airflow and cooling modifications recommended for enthusiasts seeking further performance.

The tuning suite is designed to deliver improved acceleration, sharper throttle response, and optimized boost control while maintaining smooth power delivery for everyday driving. Stage 1 also includes the iE Stage 1 transmission tune, according to the supplied product information.

Pure900 Hybrid Turbo Tuning

For enthusiasts pursuing maximum output, the iE Pure900 tuning suite is designed specifically for compatible Pure900 hybrid turbochargers. With the required intake, turbo inlet pipes, upgraded intercoolers, and four iE 4-bar MAP sensors, the system is advertised for outputs of up to 903 HP, depending on fuel, calibration, and vehicle configuration.

The Pure900 calibration is designed to deliver substantial power while maintaining responsive turbocharger behavior. It also includes specialized features such as optimized hybrid-turbo launch control and rescaled boost, horsepower, and torque gauges.

Multiple Fuel Options

The iE tuning suite supports multiple fuel-specific calibrations, including 91, 93, and 104 octane, with additional E40 and E85 fuel options available for eligible non-Pure900 configurations. Select the calibration appropriate for your fuel and hardware setup.

Important: The supplied product information states that ethanol files are not available with Pure900 Turbo Tuning. Verify current fuel-map availability and requirements with iE before purchasing.

Advanced Monitoring and AutoProtect™

The iE tuning platform incorporates AutoProtect™ safety logic, designed to monitor critical engine operating conditions and reduce power when potentially unsafe conditions are detected. The system also provides live gauge monitoring and vehicle diagnostics through the POWERlink app.

Additional features include adjustable launch strategies, brake-boost functionality for rolling launches, enhanced exhaust overrun crackles in Sport mode, revised start/stop button behavior, and raised neutral/park rev limits where supported by the selected calibration.

Manufactured by Integrated Engineering (iE), this tuning suite provides a flexible platform for compatible Audi 4.0T owners seeking increased performance, convenient mobile tuning, and support for future hardware upgrades.

Key Features

• Brand: Integrated Engineering (iE)

• Product: 4.0T V8 EA825 Performance ECU Tune

• Vehicle Platform: Compatible Audi C8 RS6, RS7, S8, SQ7, SQ8, and RSQ8 models

• Engine: 4.0L twin-turbocharged V8 EA825

• Tuning Interface: iE POWERlink Bluetooth OBD-II device and mobile app

• Mobile Compatibility: Apple iOS and Android

• Supports Stage 1 factory-turbo ECU tuning.

• Supports Pure900 hybrid turbo tuning with the required hardware.

• Advertised maximum output of up to 903 HP for compatible Pure900 configurations.

• Supports multiple fuel-specific maps, including 91, 93, and 104 octane.

• E40 and E85 maps available for eligible configurations; not available with Pure900 Turbo Tuning according to the supplied information.

• AutoProtect™ engine safety logic.

• Live engine gauges and diagnostic functionality.

• Stage 1 transmission tune included, according to the supplied product information.

• Optimized launch strategy and brake-boost functionality for supported applications.

• Rescaled boost, horsepower, and torque gauges.

• Enhanced exhaust overrun crackles in Sport mode.

• Revised boost control and throttle calibration.

• Raised neutral/park rev limits where supported.

• Road-speed limiter removal, subject to the selected calibration and applicable regulations.

• Calibration designed to adapt to different climates and elevations.

Performance and Tuning Options

Stage 1 – Factory Turbochargers

Designed for vehicles retaining their compatible factory turbochargers.

• Required Hardware: No additional hardware upgrades required for the supported Stage 1 configuration.

• Optional Upgrades: Intake, turbo inlet pipes, and upgraded intercoolers.

• Exhaust: Cat-back exhaust is optional.

• Hybrid Turbo Compatibility: Not compatible with the Pure900 turbo calibration.

• Transmission: Stage 1 transmission tune included according to the supplied product information.

Pure900 – Hybrid Turbo Upgrade

Designed for compatible vehicles equipped with Pure900 hybrid turbochargers.

• Required Hardware: Pure900 turbochargers, upgraded air intake, turbo inlet pipes, upgraded intercoolers, and four iE 4-bar MAP sensors.

• Exhaust: Cat-back exhaust is optional.

• Fuel Maps: 91, 93, and 104 octane listed for this calibration.

• Advertised Maximum Output: Up to 903 HP, depending on configuration.

• Ethanol Tuning: E40 and E85 files are not available with Pure900 Turbo Tuning according to the supplied product information.

Power Disclaimer: The 903 HP figure is a manufacturer-advertised maximum, not a guaranteed result for every vehicle. Actual output depends on fuel, turbocharger configuration, supporting modifications, calibration, and testing conditions. Confirm whether published figures represent crank horsepower or wheel horsepower with iE before comparing them with other results.

Technical Specifications

• Manufacturer: Integrated Engineering (iE)

• Product Type: ECU and compatible transmission performance tuning suite

• Engine Platform: Audi 4.0T V8 EA825

• Tuning Device: POWERlink Bluetooth OBD-II dongle

• Control Interface: iE mobile app

• Supported Operating Systems: Apple iOS and Android

• Tuning Configurations: Stage 1 and Pure900 hybrid turbo

• Fuel Options: 91, 93, and 104 octane; E40 and E85 for eligible non-Pure900 configurations

• Maximum Advertised Output: Up to 903 HP with the Pure900 configuration

• Engine Protection: AutoProtect™

• Monitoring: Live gauges and diagnostics

• Transmission Tuning: Stage 1 transmission tune included according to the supplied product information

• Pure900 Sensor Requirement: Four iE 4-bar MAP sensors

Fitment

Audi RS6 C8 4.0T V8 EA825

Audi RS7 C8 4.0T V8 EA825

Audi S8 4.0T V8 EA825

Audi SQ7 4.0T V8 EA825

Audi SQ8 4.0T V8 EA825

Audi RSQ8 4.0T V8 EA825

Fitment Note: Exact model-year coverage was not provided in the supplied product information. Confirm your vehicle's model year, engine and ECU software, transmission configuration, regional specification, and selected tune before ordering. Do not assume compatibility with other Audi 4.0T engines or different model generations unless explicitly confirmed by iE.

Installation & Compatibility Notes

• Requires a compatible iE POWERlink Bluetooth OBD-II device and the appropriate iE tuning suite.

• Follow the manufacturer's instructions for connecting the device and flashing the ECU through the mobile app.

• Select the correct calibration for the vehicle's hardware configuration and fuel type.

• Stage 1 is designed for compatible factory-turbo hardware; supporting intake and cooling upgrades are optional.

• Pure900 tuning requires Pure900 turbochargers, an upgraded intake, turbo inlet pipes, intercoolers, and four iE 4-bar MAP sensors.

• Confirm transmission-tuning availability for the exact vehicle and software configuration.

• Verify fuel-map availability before switching between gasoline and ethanol-based fuels.

• ECU tuning can affect emissions compliance, warranty coverage, reliability, and component service life.

• High-output turbocharger upgrades can increase stress on the engine, transmission, cooling system, and drivetrain.

• AutoProtect™ is an additional safety feature and does not guarantee protection against mechanical failure.

• Professional installation and tuning support are recommended for modified or high-output vehicles.