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Unitronic Stage 2 Performance Software for 2.0TSI EA888 EVO4 - NOW AVAILABLE

Feb 13th, 2023 Products

Unitronic® Stage 2 Performance ECU Software is now available for the MK8 GTI®, MK8 Golf R® and 8Y S3® equipped with the 2.0TSI EVO4 engine. With testing and validations completed, power outputs on the MK8 Golf R and 8Y S3 are increased by up to +133HP / +121LB-FT with Unitronic Stage 2 93octane/98ron Performance Software for a maximum of 470HP / 431LB-FT*. Power outputs on the MK8 GTI are increased by up to +119HP / +115LB-FT with Unitronic Stage 2 93octane/98ron Performance Software for a maximum of 385HP / 399LB-FT*. These software upgrades are fully compatible with our UniCONNECT+ cable, empowering Clients to tune their vehicles directly through the OBD-2 port within minutes, from the comfort of their own home or garage. Support for E85 is coming soon!


Unitronic tuning





Expanding on its extensive experience with the SIMOS controllers found in modern VW and Audi vehicles and being the first major North American tuner with Performance Software offerings for the SIMOS 19.6 equipped MK8 GTI, Golf R and 8Y S3 (including at-home tuning via UniCONNECT+), Unitronic Engineers wasted no time recalibrating the new SIMOS 19.6 ECU to achieve more power and torque with Stage 2 calibration optimizations including recalibrated boost regulation, optimized ignition timing, lambda, camshaft timing, and much more after upgrading to a performance downpipe.

Unitronic tuning

Unitronic Software and Hardware Engineers are continually collaborating throughout the research and development phases. On the hardware side, Engineers developed the Unitronic Performance Downpipe to dissipate exhaust gasses and reduce backpressure on the turbine more effectively and collaborated with the Engineering team on the software/calibration side to work through further dyno and road testing while closely monitoring running conditions through high-speed data logging tools and equipment to ensure maximum performance is achieved, while maintaining complete OEM-like reliability and drivability. Extra attention was paid to turbocharger shaft speed, exhaust manifold absolute pressure, intake pressure and much more to ensure this high level of reliability was achieved.

Unitronic 2.0tsi evo4 dp

Aided by empirical data collection and instrumentation, it's common for Unitronic Engineers to uncover factory hard part limitations where such inhibits maximum performance either through efficiency short-comings or air-flow restrictions. In the case of the 2.0TSI MQB EVO4 engines, Unitronic found the factory intercooler quickly heat soaks and loses its ability to keep charge air temperature at reasonable levels before the ECU's logic intervenes to reduce output based on IATs being too high. Thus, a Unitronic Intercooler Upgrade was required in order to achieve maximum output and published power figures. Going one step further for Stage 2, a downpipe upgrade will be required in order to alleviate downstream restrictions and optimize turbocharger performance to unlock even more power.


Uni MK8 GTI dyno

Continuing along and similar to the requirements for Unitronic's Stage 1+ unlimited torque calibrations, Unitronic Engineers also quickly identified gearbox originating torque limitations on the TCU side of the DQ381.2 gearbox. In order to overcome these limitations while ensuring proper torque management and thus, clutch operation with maximum torque calibrations, TCU Performance Software is required for Stage 2 ECU calibrations. Unitronic Stage 1 TCU Performance Software increase clutch pressure to support up to 600NM and is suitable for all Stage 1-2 ECU calibrations. It was developed to improve your overall driving experience through calibration adjustments including an increased torque limiter, advanced torque management, adjustable launch control, optimized gear shift points, quicker shifts, and gear display enabled. At the moment, only DQ381.2 gearboxes with BLvXXXX0301 are currently tunable through the OBD2 port with support for the newer TCUs with BLvXXXX0401 in the works.

If you have a vehicle with the latter TCU, Unitronic offers both Stage 1 and Stage 1+ ECU Performance Software suitable for use with the stock TCU calibration in a limited torque format with Stage 1+ for 93oct on a MK8 Golf R or 8Y S3 making 430HP/377LB-FT. Once support is unlocked for the latter TCU types, you'll be able to purchase our TCU Performance Software and use our Stage 1-2 Calibrations engineered for use with our TCU Calibrations to unleash your vehicle's full potential. An upgraded clutch is strongly recommended for MQ350 equipped MK8 Golf R and MK8 GTI vehicles using our Stage 2 ECU Performance Software.

Unitronic Stage 1, Stage 1+, and Stage 2 ECU calibrations are fully supported by Unitronic's UniCONNECT+ cable, which enables you to not only tune your ECU and TCU from the comfort of your own home or garage, but also gives you access to data logging** and analysis** and much more. These additional resources can and have been proven very effective to aid customers in not only learning more about their vehicle's performance, but also achieving the absolute best results possible.

Unitronic 8Y S3 track

It's important to note that it doesn't stop here for our development team as we're committed to continuing onward with our expansive development of these new platforms while we also anxiously await getting our development cars back to the track in the near future to continue on our never-ending pursuit to further improve on our results and welcome feedback, data, and information from our customers all over the globe.




unitronic-performance downpipe

Unitronic's Carbon Fiber Intake System and Air Duct is now available for the MK8 GTI. This complete system optimizes airflow, improves throttle response and enhances turbo induction sounds while providing seamless integration and an aggressive carbon fiber presence in the engine bay. Also available for these new vehicles is Unitronic's Intercooler Upgrade which provides a dramatic reduction in charge air temperatures to ensure peak performance is achieved and sustained while resisting heat-soak after repeated efforts and in harsh climates and conditions.

The MK8 GTI Cat-Back Exhaust System is also available. This exhaust system features premium Stainless Steel construction, v-band fasteners, customizable tips and offers maximum performance, while maintaining a comfortable but enhanced exhaust tone which isn't obtrusive inside the cabin. Our all-new Dogbone Mount Upgrade is also available for DQ381/MQ350 vehicles which helps eliminate wheel hop and drivetrain slop present with the factory style mount. It also improves drivetrain stability in order to withstand the forces present during hard launches or demanding driving scenarios with your choice of Street or Race bushings depending on your intended usage.


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.

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 reliability and drivability 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.

Uni TCU tuning


End-User Programmable with UniCONNECT+

Flash your TCU from the comfort of your own home or garage. Within minutes (approximately 70-seconds to be exact on this platform), you'll be enjoying an entirely transformed driving experience.

Optimized D & Sport Modes

D-mode is optimized for everyday daily driving and economy, while S-mode is optimized for faster acceleration.

Increased Clutch Pressure Supporting Up To 600NM

Clutch clamping pressure increased in order to meet the power demands of Unitronic Stage 1 / 1+ and Stage 2 ECU calibrations.

Advanced Torque Management

Unitronic has calibrations available for limited torque and full torque levels when Launch Control (AMAX) is engaged. Limited (low) torque calibrations will limit torque in 1st gear, which is ideal and optimized for use on true street prepped car launching on an unprepped street-like surface with street tires with little to no drivetrain upgrades. Full torque calibrations will provide maximum torque for launching in ideal conditions like on a prepped/glued race track surface with drag radials or slicks and using drivetrain upgrades like a Dogbone Mount.

Quicker Gear Shifts

Unitronic's TCU Performance Software calibration enhances the gear shift speeds making them up to 70% quicker.

Gear Display Enabled in D and S Mode

Gear Display is enabled, allowing the driver to see the current gear in both D- and S-mode on the Virtual Cockpit / MFD.
(D1, D2, etc. & S1, S2, S3, etc.)

Dual Setpoint Adjustable Launch Control

Unitronic has adjusted the launch control RPM setpoints to allow for quicker acceleration off the launch control. Dual-stage launch control allows users to choose between two different launch control RPM setpoints based on the current conditions observed. (surface conditions, tires, etc.) Launch Control Setpoint 1 is activated at 100% pedal position, without engaging the kick-down switch. Launch Control Setpoint 2 is activated at "110%" pedal position. (100% pedal position with the kick-down switch engaged)

This platform is fully supported with Unitronic’s UniCONNECT+ cable, empowering you to tune your vehicle from the comfort of your own home or garage. The cable and associated software allows you to install, and upgrade, your new Unitronic ECU tunes, flash back to stock file in addition to reading and clearing DTCs. This is a perfect option for people who like to be autonomous or who don't have a Unitronic Authorized Dealer nearby!

Unitronic UniConnect Plus cable


2022+ VW GTI 2.0TSI EA888 EVO4

2022+ VW Golf R 2.0TSI EA888 EVO4

2022+ Audi S3 2.0TSI EA888 EVO4

*Subject to ECU box code availability.

**Features coming soon - in beta testing.

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