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Get the most out of your vehicle today with Unitronic Performance ECU software for the Audi B9 A4, A5 or Allroad 2.0T.

Choose your software stage:

Stage 1 - 303 HP / 336 LB-FT (+51 HP / +63 LB-FT)

Performance Software Precisely Engineered for a completely stock car.

  • Requires 91 Octane Fuel

Stage 1+  - 311 HP / 346 LB-FT (+59 HP / +73 LB-TQ)

Performance Software Precisely Engineered for a completely stock car.

  • Requires 93 Octane Fuel

Stage 2 - 345 HP / 374 LB-FT(+93 HP / +101 LB-FT)

Performance Software Precisely Engineered for use with an upgraded exhaust system.

Stage 2 TCU tune is required with installation of Stage 2 ECU software for this vehicle.

  • Requires an aftermarket 3" downpipe
  • Requires 91 or 93 octane fuel
  • Requires Upgraded air intake
  • Requires Upgraded Intercooler
  • Stage 2 TCU software required in order to remove torque limiter (without a Stage 2 TCU tune, power will be limited)

Features Included With All Stages

  • Optimized Responsiveness, Smoothness, Drivability, and Comfort
  • Unitronic’s ECU calibrations are engineered to improve engine response and reduce low-end lag. Unitronic’s Performance Software has gained worldwide recognition and is well known for its broad powerband, with smooth power delivery, maximizing responsiveness and “area under the curve”, under normal and hard acceleration.
  • Ignition Timing Precisely Calibrated for Higher Octane Fuel
  • Engine calibration optimized to take advantage of higher fuel quality to extract maximum energy from the combustion. Therefore, when using a higher octane fuel, more power and better fuel efficiency will be achieved.
  • Left Foot Braking (LFB) Enabled (Stage 2 Only)
  • LFB allows users to apply load on the engine using their left foot on the brake, to build boost when the edge is needed at the race track.
  • Exhaust Crackle/Overrun Enabled (Stage 2 Only)
  • For North American vehicles. Requires UniConnect+ cable. Subject to availability.
  • Optimized Maximum Output
  • Unitronic’s ECU Calibrators deliver the maximum power output while staying within the operational limits of the factory engine and drivetrain components. Specifically, this results in the highest engine performance without sacrificing the reliability of the engine, turbocharger, or other engine and drivetrain components.
  • Factory Safety Limiters Retained
  • OEM “fail safes” are retained within the ECU calibration. Close monitoring of all operation parameters ensures that engine operation stays within factory components limits, resulting in reliability.
  • Power Delivery Perfectly Optimized Throughout the Power Band
  • Aligned with the OEM strategy, the calibration is designed to offer a large flat torque plateau to provide a smooth and linear power band. Maximum torque output is achieved sooner and maintained longer which creates a broader torque plateau and greater area under the curve. This results in an improved acceleration and optimal engine operation.
  • Speed Governor Removed
  • Vehicle speed limiter within ECU is removed. (Subject to transmission rotational speed limit.)
  • Improved Fuel Efficiency
  • Optimized timing and injection in cruising condition allows for an improved fuel efficiency, under normalized driving conditions.
  • Engineered with Strict Industry Standards
  • With over 10 years of experience with Bosch and Siemens engine management systems and calibrations, Unitronic is able to utilize its expertise, industry leading tools and equipment to ensure an optimal calibration; delivering maximum performance, while maintaining complete OEM-like reliability and drivability.
  • Extensively Tested Under Various Driving Conditions
  • Development begins using Unitronic’s in-house Maha Chassis dyno housed in an environmentally controlled cell; closely monitoring a plethora of operational data, utilizing industry leading calibration tools and resources. Beta calibrations are then tested in street and track scenarios, using multiple cars under various driving conditions. This engine calibration strategy ensures Unitronic Performance Software delivers maximum performance, OEM-like drivability and reliability anywhere in the world. Unitronic Performance Software is only released to its Clients once development is thoroughly completed in accordance to Unitronic’s strict standards.


  • 2016+ Audi B9 A4 2.0T
  • 2016+ Audi B9 A5 2.0T
  • 2017+ Audi B9 Allroad 2.0T


UniConnect+ Software Interface

UniCONNECT+ gives you the freedom to effortlessly install your Unitronic Performance ECU and DSG Software from the comfort of your own home or garage.*

Unitronic (and NGP) recommends the use of battery chargers to ensure, uninterrupted, trouble-free, flashing at home! If you do not use a good battery charger while programming your ECU, you run the risk of damaging it should your battery voltage drop below recommended levels.

Includes Unitronic carrying case.

Change Software Maps
Quickly and Easily re-flash your ECU with Performance Software maps designed and specifically calibrated to suite the hardware and fuel modifications or fuel grade used.

Data Logging
Gathering high resolution data is made easy with Unitronic’s pre-configured channel loadouts for fast and effortless troubleshooting and data logging.**

Simple back to factory restoration
UniCONNECT+ makes it painless to revert your ECU back to it’s stock calibration within minutes.*

Advanced Settings
Enable optional advanced settings such as Launch Control or No Lift Shifting within minutes. Enable Gear display in MFG for DSG Software owners.*

Technical Specifications
Minimum System Requirements:

  • Operating System: Microsoft Windows 10
  • Internet Explorer 11
  • Screen Resolution: 1024x768
  • Processor: 1.5 GHz or higher
  • Memory (RAM): 4GB or more

For optimal application performance:

  • Operating System: Microsoft Windows 10 or higher
  • Internet Explorer 11 or newer
  • Screen Resolution: 1024x768
  • Processor: 2.0 GHz or higher
  • Memory (RAM): 8GB or more

Internet access is required.

Do you prefer professional installation?

If you are local to one of our shops and would prefer to have us install this software, please contact one of our shops to set up an appointment.

Please note that this software may not be available for all ECU IDs.

The Unitronic+ Programmer is not returnable under most circumstances. The only exception for this policy is if you were to receive your cable and Unitronic does not have a tune for your vehicle.

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