Unitronic Stage 2 ECU Software for Audi 8Y RS3 | EUS-25EVO-2

Unitronic Stage 2 Performance Software is precisely calibrated for use with 93 octane / 98 RON fuel.

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

2022+ models require to have the hood opened during the flashing process.

Unitronic FLEX fuel enabled ECU Performance Software Calibrations are available for this platform allowing for seamless transitions between 100% gasoline to 85% ethanol and anything in between, without requiring an ECU reflash. This FLEX enabled Software is available for an additional fee and it covers all lower stages up until your highest purchased stage as well. UniFLEX Hardware is required in order to take advantage of these FLEX enabled calibrations. Please contact Unitronic or your local Authorized Dealer to learn more.

Unitronic Advanced Features (UAF) are also available for this platform. Thanks to proprietary ECU code, the Unitronic Advanced Features (UAF) Add-On gives unparalleled levels of control over Pops and Bangs, Launch Control Settings and Rolling Launch Control for true adjustability directly from the driver’s seat.

When purchasing this upgrade, please be prepared to provide Unitronic with the vehicle’s ECU ID, ECU Revision, VIN and Long Coding to ensure proper configuration.

Features

• 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.)

Required Hardware

• 2.5TFSI EVO Spark Plug Set (NGK R7437-9) by Unitronic
• Unitronic 4 inch Forged Carbon Fiber Intake System for 2.5TFSI EVO
• Unitronic 4 inch Intake System for RS3 and TTRS, 2.5TFSI EVO
• Unitronic 4-inch Turbo Inlet Elbow for 8Y RS3
• Unitronic Downpipe w/ Midpipes for 2.5TFSI EVO
• Unitronic Intercooler for 8Y RS3, 8V.2 RS3 and 8S TTRS
• Unitronic MPI Injector Upgrade Kit for 2.5TFSI EVO
• Unitronic UniFLEX Hardware Kit (w/ sensor) for 2.0TSI EVO4 and 8Y RS3 2.5TFSI
• UniFLEX Hardware Kit and MPI Upgrade only required if using UniFLEX or E85 Software.