iE Performance Engine ECU Tune For Audi B9 A4 2017-2020

Unlock the performance potential of your Audi with the Integrated Engineering (iE) Performance ECU Tune, designed for compatible 2017–2020 Audi B9 A4 and A5 2.0T applications. Using the iE tuning platform, this performance software recalibrates the factory engine computer to deliver stronger acceleration, increased horsepower and torque, sharper throttle response, and refined power delivery for both daily driving and spirited performance.

The iE ECU Tune offers a staged upgrade path that allows you to increase performance as you add supporting hardware. Stage 1 delivers advertised gains of up to 52 horsepower with compatible 91- or 93-octane fuel. Stage 2 supports additional airflow and cooling modifications, including an upgraded intake, intercooler, and downpipe, with advertised output of up to 378 HP on the stock turbocharger. For more advanced builds, the iE/Turbo Systems Hybrid turbocharger, upgraded fuel system, 5-bar MAP sensors, and dedicated Stage 3 tuning can support advertised output of up to 424 HP.

Beyond power gains, the iE tuning platform offers performance-focused features such as adjustable throttle response, configurable exhaust crackles, supported exhaust-flap controls, Anti-Lag Launch Control, and Rolling Anti-Lag (RAL), where available. The optional TrueFlex system supports compatible gasoline and ethanol-blend configurations when the required fuel-system hardware and calibration are installed.

The tuning platform also incorporates AutoProtect safety logic, which monitors supported engine operating conditions and can reduce power when necessary. For certain later vehicles with locked transmission control software, iE describes custom engine calibration strategies designed to accommodate increased torque without requiring a separate transmission tune. Availability depends on the exact vehicle and transmission configuration.

Manufactured by Integrated Engineering, this ECU tuning solution is designed for Audi enthusiasts seeking a flexible upgrade path from a stock-turbo setup to a more extensively modified hybrid-turbo build.

Key Features

• Brand: Integrated Engineering (iE)

• Product: Performance Engine ECU Tune

• Vehicle Application: Audi B9 A4 and A5

• Engine Platform: Compatible 2.0T turbocharged applications

• Tuning Platform: iE POWERlink Tuning Suite

• Stage 1 Performance: Advertised gains of up to 52 HP with compatible fuel and configuration.

• Stage 2 Performance: Advertised output of up to 378 HP with the required supporting hardware and calibration.

• Hybrid-Turbo Performance: Advertised output of up to 424 HP with the specified hybrid turbocharger and supporting upgrades.

• Adjustable Throttle Response: Up to 15 configurable response settings.

• Exhaust Crackles: Adjustable crackle settings on supported configurations.

• Exhaust-Flap Control: App-based control for compatible exhaust systems.

• Anti-Lag Launch Control: Helps build engine speed and turbo boost before launch on supported configurations.

• Rolling Anti-Lag (RAL): Provides supported boost-building functionality during rolling acceleration.

• TrueFlex Compatibility: Supports specified gasoline and ethanol-blend calibrations with compatible hardware.

• AutoProtect Safety Logic: Monitors supported engine conditions and can reduce power when necessary.

• Transmission Compatibility: Transmission tuning options depend on the vehicle's transmission controller and software version.

• Staged Upgrade Path: Supports progression from Stage 1 to Stage 2 and compatible hybrid-turbo configurations.

Performance Stages & Hardware Requirements

Stage 1 — ECU Tune

• Advertised gains of up to 52 HP.

• Designed for compatible 91- or 93-octane fuel.

• Requires the supported iE ECU calibration and compatible tuning hardware.

• An upgraded intake is an optional supporting modification.

• An iE transmission tune is available for compatible vehicles and can enhance shift behavior and drivetrain performance.

Stage 2 — Stock-Turbo Performance

• Manufacturer-advertised output of up to 378 HP.

• Requires a compatible upgraded air intake.

• Requires an upgraded intercooler.

• Requires a compatible downpipe.

• Requires the appropriate iE Stage 2 ECU calibration.

• Requires the applicable iE Pro or Apex package, according to the manufacturer's build guide.

• A compatible cat-back exhaust can complement the setup and supported exhaust sound features.

Stage 3 — Hybrid-Turbo Performance

• Manufacturer-advertised output of up to 424 HP.

• Requires the compatible iE/Turbo Systems Hybrid turbocharger.

• Requires a high-pressure fuel pump (HPFP) upgrade.

• Requires compatible 5-bar MAP sensors.

• Requires upgraded injectors.

• Requires the dedicated iE Stage 3 Map Pack.

• Requires the iE Stage 3 TCU tune where specified.

• Requires the iE APEX Tune Suite.

Important: Confirm the exact supporting hardware, fuel requirements, and calibration availability for your vehicle before ordering. Advertised horsepower figures depend on the engine, turbocharger, fuel, software version, supporting modifications, and testing conditions.

Fuel & TrueFlex Compatibility

The iE tuning platform offers supported calibrations for different fuel configurations, including 91- and 93-octane pump gasoline and compatible ethanol-blend setups.

The TrueFlex system is designed to measure ethanol content and adjust supported calibration parameters according to the fuel mixture. Depending on the specific application, compatible configurations may support pump gasoline, E85, or intermediate blends.

• Verify TrueFlex hardware compatibility with your exact Audi and engine configuration.

• Install all required fuel-system components before using an ethanol-compatible calibration.

• Use only the fuel types and ethanol concentrations supported by the selected tune.

• Confirm the available fuel maps and required hardware with Integrated Engineering before purchase.

Transmission Compatibility & Tuning

Transmission support depends on the vehicle's model year, transmission type, and transmission control unit software.

For compatible vehicles, the iE transmission tune can complement engine tuning by adjusting supported shift behavior and drivetrain calibration. The manufacturer also describes custom engine ECU strategies for certain vehicles with locked transmission computers, designed to accommodate increased torque without requiring a separate TCU tune.

Important: Do not assume that a transmission tune is included with the ECU calibration or that the locked-transmission strategy applies to every 2019–2020 or newer Audi. Verify the exact vehicle, transmission code, TCU software, and supported iE tuning package before ordering.

Fitment

2017–2020 Audi A4 B9 — 2.0T

2017–2020 Audi A5 B9 — 2.0T

Additional Applications: The manufacturer's build guide references the Audi Q5, but exact model-year and engine compatibility for the Q5 were not provided in the supplied product information. Confirm Q5 fitment separately before ordering.

Fitment Note: Compatibility depends on the exact model year, engine code, ECU software, transmission configuration, regional specification, fuel system, and selected tuning stage. Verify your vehicle against Integrated Engineering's current supported vehicle list before purchasing. Do not assume compatibility with the Audi S4, S5, SQ5, or other Audi platforms unless explicitly confirmed by the manufacturer.

Important Tuning Compatibility & Disclaimers

• Verify current iE support for your exact vehicle, engine code, ECU software, and transmission configuration.

• Stage 2 and Stage 3 require the specified supporting hardware.

• Hybrid-turbo tuning requires the dedicated Stage 3 Map Pack and compatible fuel-system components.

• TrueFlex operation requires compatible hardware and an approved calibration.

• Features such as Anti-Lag, Rolling Anti-Lag, exhaust crackles, and exhaust-flap control may vary by vehicle and software version.

• Use only calibrations developed for your installed hardware and intended fuel.

• AutoProtect is designed to help manage certain engine risks but cannot eliminate all mechanical risks or guarantee engine longevity.

• ECU and transmission tuning may affect reliability, component life, emissions compliance, and warranty coverage. Check applicable regulations before installation.