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AUDI RS Q3 2.5TFSI EVO STAGE 1+ [ECU] [20-22]


505HP / 496LB-FT
Unitronic Stage 1+ Performance Software is precisely calibrated for use with 93 octane / 98 RON fuel. It is the performance upgrade that will result in the most gains!  

592HP / 528LB-FT
Unitronic Stage 1+ E85 Performance Software is precisely calibrated for use with E60-E85 fuel, engineered for a vehicle that has full hardware bolt-ons. It is the performance upgrade that will result in the most gains!

NOTE: E85 calibrations are not full flex fuel calibrations, therefore, when using an E85 ECU calibration, the engine is only designed to operate on E85 blends from E60-E85.

Using an E85 calibration with pump gasoline or race gas may result in engine damage.

Unitronic strongly recommends the use of an Ethanol Content Analyzer, to ensure Ethanol content levels are within the permissible range.  When switching between gasoline to ethanol, please use Unitronic’s fuel conversion guide here. Unitronic recommends using NGK R7437-9 spark plug gapped to 0.024” +/-0.002” (0.6mm +/0 0.05mm) with Stage 1+ E85 and Stage 2 ECU calibrations, with a replacement interval of 10,000-15,000 miles (16,000-24,000 km).

Unitronic Stage 2 TCU Performance Software is required to run Stage 1+ ECU tune. 

Performance Software for your ECU Box Code is subject to availability. 

2019+ models may require to have the hood opened during the flashing process.


Installation Flashed directly through the (OBDII) Diagnostic port of your vehicle (10-15 minutes). 

UniCONNECT+ This vehicle has added support through UniCONNECT+ which allows you to program your own vehicle right in your own garage. Learn More


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. 

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. 

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. 

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. 

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. 

Improved Fuel Efficiency Optimized timing and injection in cruising condition allows for an improved fuel efficiency, under normalized driving conditions. 

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. 

Speed Governor Removed Vehicle speed limiter within ECU is removed. (Subject to transmission rotational speed limit.) 

Full Staged Software Suite Includes all Stage 1+ tune variants and all lower software stages as well.

Recommended Hardware

Related Hardware

Oil and Additives Recommendation Unitronic uses and recommends Liqui Moly Oil & Additives exclusively for your vehicle, which meet Audi/VW approvals. To ensure your vehicle is maintained with the #1 oil brand in Germany, see what is recommended for you with the Liqui Moly Oil Guide.

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