iE Performance Engine Tune For 2021-2025 Audi A4, A5, & Q5 45 TFSI iE Performance Engine Tune For 2021-2025 Audi A4, A5, & Q5 45 TFSI IESOWE51

Unlock the performance potential of your Audi with the Integrated Engineering (iE) Performance Engine ECU Tune, designed for compatible 2021–2025 Audi A4, A5, and Q5 45 TFSI models equipped with the 2.0T engine. Using the iE POWERlink™ Tuning Suite, this performance upgrade recalibrates the factory engine computer to deliver increased horsepower, stronger torque, sharper throttle response, and improved acceleration while maintaining everyday drivability.

The iE Stage 1 ECU Tune is designed for enthusiasts who want substantial performance gains without requiring additional engine hardware. For compatible B9.5 2.0T applications, iE advertises output of up to 323 horsepower and 391 ft-lbs of torque, with gains of up to 55 horsepower over stock. The revised calibration is engineered to deliver smooth, predictable power and responsive acceleration for both daily driving and spirited performance.

Advanced ECU Calibration and Engine Protection

Integrated Engineering develops its calibrations through extensive testing across different vehicles, climates, and driving conditions. The manufacturer's AutoProtect functionality monitors critical engine operating conditions and can reduce power when necessary to help protect the engine.

For compatible 2021-and-newer applications with locked transmission control software, iE also describes custom engine-side calibration strategies designed to accommodate increased torque without relying on conventional low-torque tuning files. Actual functionality depends on the vehicle's ECU and transmission configuration and the software supported by iE.

POWERlink Tuning Convenience

The iE POWERlink Tuning Suite provides a convenient way to install the compatible ECU calibration using the POWERlink Tuner and mobile app. Connect the tuner to the vehicle's OBD-II port, pair it with the app, and follow the manufacturer's flashing instructions.

Owners can retain the factory intake configuration or pair the tune with a compatible iE Air Intake System for an additional intake upgrade and more pronounced turbocharger sound. Stage 1 is designed to provide a significant performance improvement without mandatory supporting hardware upgrades, subject to the exact application and calibration requirements.

Manufactured by Integrated Engineering (iE), this ECU tuning solution is ideal for Audi owners seeking a refined daily-driving experience with substantially improved performance when accelerating.

Key Features

• Brand: Integrated Engineering (iE)

• Product: Performance Engine ECU Tune

• Tuning Platform: iE POWERlink™ Tuning Suite

• Vehicle Applications: Audi A4, A5, and Q5 45 TFSI

• Model Years: 2021–2025

• Engine Platform: Compatible 2.0T TFSI applications

• Tuning Stage: Stage 1

• Advertised Output: Up to 323 horsepower and 391 ft-lbs of torque for supported configurations.

• Advertised Power Gain: Up to 55 horsepower, depending on the original vehicle output and selected calibration.

• No mandatory supporting hardware upgrades for compatible Stage 1 configurations.

• Designed to improve acceleration, engine response, and power delivery.

• Refined calibration intended to maintain everyday drivability.

• AutoProtect engine monitoring and power-reduction functionality, where supported.

• Custom engine-side torque strategies for certain compatible locked transmission configurations.

• Optional compatibility with the iE Air Intake System.

• POWERlink Tuner installation through the OBD-II port and mobile app.

• Confirm the exact product part number, fuel requirements, and supported software before ordering.

Technical Specifications

• Manufacturer: Integrated Engineering

• Product Type: Engine ECU Performance Tune

• Tuning Software: iE POWERlink™ Tuning Suite

• Tuning Stage: Stage 1

• Advertised Maximum Output: Up to 323 HP

• Advertised Maximum Torque: Up to 391 ft-lbs

• Advertised Maximum Gain: Up to 55 HP

• Installation Method: OBD-II connection using compatible POWERlink hardware and mobile app

• Supporting Hardware: No required upgrades for compatible Stage 1 applications; verify exact requirements

• Engine Application: Compatible Audi 2.0T 45 TFSI configurations

Power figures are manufacturer-advertised maximums and may vary with fuel quality, vehicle condition, regional engine specifications, and the selected calibration.

Fitment

2021–2025 Audi A4 45 TFSI

2021–2025 Audi A5 45 TFSI

2021–2025 Audi Q5 45 TFSI

Fitment Note: Compatibility depends on the exact model year, engine code, regional specification, ECU software version, transmission configuration, and available iE support. Confirm your vehicle against Integrated Engineering's current supported vehicle list before purchasing. Do not assume compatibility with other Audi engines, S or RS models, or different powertrain configurations unless explicitly confirmed by the manufacturer.

Installation & Compatibility Notes

• Install the calibration using a compatible iE POWERlink Tuner and mobile app.

• Confirm whether the POWERlink hardware and software license are included with the selected product.

• Verify the required fuel octane and calibration options for your exact vehicle.

• Stage 1 is advertised as requiring no additional hardware upgrades, but all vehicle-specific requirements should be confirmed before installation.

• Some newer transmission configurations may have locked control software and may rely on supported engine-side torque strategies.

• Use only calibrations intended for your exact engine, ECU software, fuel type, and hardware configuration.

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

• Follow Integrated Engineering's current installation instructions and operating recommendations.