Unitronic Performance Software for 8Y RS3 2.5TFSI EVO - NOW AVAILABLE

Unitronic® Performance ECU Software is NOW AVAILABLE for the 8Y (2022-2024) Audi® RS3® equipped with the 2.5TFSI® EVO DXH engines in North America (NAR) with UniFLEX Flex Fuel and the all-new Unitronic Advance Features (UAF) Add-Ons. With testing and validations completed, power outputs on the North American (NAR) 8Y RS3 is increased by up to +201HP / +152LB-FT with Unitronic Stage 2 E85 Performance Software for a maximum of 638HP / 534LB-FT*.

Once the ECU is unlocked, users can tune their vehicles directly through the OBD-2 port within minutes, from the comfort of their own home or garage with UniCONNECT+. Support for MY22+ RS3 and Cupra Formentor VZ5 DNWx engines found in the Rest-of-World (RoW) markets are coming soon!

NEW BOSCH ECU HARDWARE

The 8Y RS3 was one of the first platforms to arrive equipped with the new Bosch H80 MG1CS163 ECU hardware, which is a highly sophisticated controller, that introduced new challenges in not only finding a solution to gain access to reflash the new ECU hardware, but also get oriented with the new strategies found in this new MG1CS163 ECU type, while simultaneously introducing new innovation features and solutions. Unitronic Software Engineers quickly developed an ECU unlock solution, but due to the unique nature of these new H80 MG1 ECUs, Unitronic requires ECUs to be sent to its Headquarters for unlock operations to be performed. With over 20 years of experience in this market, it was evident that some customers would not want any downtime associated with the ECU unlocks, so Unitronic is happy to offer three options regarding the ECU Unlock, in efforts to offer a variety that will suit everyone's preferences.

These modern Bosch MG1 ECUs like the ones found in this generation, are highly intelligent controllers that can effectively adapt to environmental and operational data collected from the system's sensors to ensure an unmatched level of reliability in ever-changing conditions, but also introduced unique challenges that would require some handling in performance demanding situations without impacting reliability or drivability.

Unitronic Engineers not only enhanced these models, but also developed unique and innovative ECU code, rather than just traditional calibration based adjustments only to ensure Unitronic could develop its Performance Software which is fully optimized for maximum performance together with an unmatched OEM-like level of reliability.

AVAILABLE STAGE 2 SOFTWARE

AVAILABLE STAGE 1 SOFTWARE

UNIFLEX (FLEX FUEL)

As part of this expansive project, Unitronic is proud to be the first to implement native, true, flex fuel code to the factory Bosch MG1CS163 ECU called UniFLEX. Unitronic’s UniFLEX Hardware allows for a plug and play installation through its proprietary UniFLEX Module and a genuine Continental Ethanol Sensor with required fittings and harnesses.

When combined with Unitronic’s UniFLEX-enabled Performance Software Add-On, the factory Bosch MG1CS163 ECU receives ethanol content over the CAN-bus and utilizes this fuel composition data to blend mapping of timing, boost pressure, fueling, and much more completely on-the-fly. Simplified, this allows for seamless transitions from 0% to 85% ethanol content — or said another way, 100% gasoline to 85% ethanol and anywhere in between, without needing an ECU reflash.

UniFLEX is also Bluetooth® enabled, allowing for wireless connectivity with iOS and Android mobile devices using the Unitronic UniE85 Manager App.

ADVANCED FEATURES (UAF)

Adding even more to the magnitude of this project, Unitronic is proud to introduce its Advanced Features. Thanks to the proprietary ECU code, the Unitronic Advanced Features (UAF) Add-On gives unparalleled levels of control for true adjustability directly from the driver’s seat.

Let’s face it, one of the challenges often faced during development is making decisions on subjective subjects like Exhaust Overrun (the infamous pops and bangs) or subjects with an element of variability in nature, like Launch Control RPM Setpoint. UAF solves these issues with introducing adjustability controlled through the cruise control stalk in coordination with the visual paged menu system using the power and torque gauges on the virtual cockpit instrument cluster.

To enter the UAF menu, first engage the parking brake and place your foot firmly on the brake pedal. Ensure you can see the Power and Torque gauges on the virtual cockpit instrument cluster. Press and hold the CRUISE CONTROL SET button for 3 seconds. The Power (PWR) and Torque (TQ) Gauges will both begin to display 1. The Power (PWR) Gauge corresponds to the page in the menu and the Torque (TQ) gauge corresponds to the index value selected.

Use the CRUISE CONTROL UP & DOWN buttons to toggle through pages and use the CRUISE CONTROL RESUME & CANCEL buttons to toggle between selected index values.

To save the values, release your foot off of the brake pedal. Be sure to disengage the parking brake before driving off or trying to engage launch control.

For example, to adjust the ADJUSTABLE LAUNCH CONTROL (ALC) from 4000RPM to 5000RPM, first ensure the parking brake is engaged and your foot is firmly pressed on the brake pedal. Press and hold the CRUISE CONTROL SET button and wait for PWR 1 / TQ 1 to display. Press CRUISE CONTROL UP 2 times to PWR 3. Press CRUISE CONTROL RESUME 5 times TQ 6. You will also see the RPM gauge fill with red to the indicated RPM Setpoint. Release the brake pedal to save the settings. Don’t forget to disengage the parking brake before driving off or trying to engage launch control.

While Unitronic will continue to introduce new Advanced Features over time, the initial offerings will include:

Exhaust Overrun (Pops and Bangs)

Adjustable Launch Control

Rolling Launch Control

For demonstrations of how to use the adjustable features and functions of UAF, please refer to the following videos:

Unitronic also built in plenty of failsafes and safety mechanisms into its Advanced Features to protect the engine and its components as much as possible. Certain preconditions apply to function activation or engagement, and other criteria control inhibition of functions.

Diagnostic Feedback:

If any preconditions are not met, the Power Gauge will show 11 and the Torque Gauge will display a single numerical value, which corresponds to the unmet precondition:

2 = Min. Engine Speed Not Reached
3 = Min. Vehicle Speed Not Reached
4 = Min. Coolant Temperature Not Reached
5 = Min. Oil Temperature Not Reached
6 = Maximum EGT Exceeded
7 = Wrong Drive Mode
8 = Gearbox Not in Manual (TT/TIP) Mode

Unitronic has additional features in the pipeline and looks forward to hearing your feedback on what you'd like to see incorporated into UAF!

HOW TO BUY

Unitronic is happy to offer three options regarding the ECU Unlock, in efforts to offer a variety that will suit 8Y RS3 owner’s preferences.

First, you’ll need to choose your unlock method:

Send-in Original ECU for Unlock

This option can be purchased through Unitronic or any Unitronic Authorized Dealer. It requires your ECU to be removed from your vehicle and sent to Unitronic HQ for an unlock and initial tuning. This option will result in some down-time of your vehicle.

$1000 USD

Core Exchange

This option can be purchased through Unitronic or any Unitronic Authorized Dealer. You will be shipped a replacement ECU that is mostly plug-n-play into your vehicle. You’ll need to do some clearing of fault codes, but otherwise trouble-free. Once the replacement ECU is installed, return your original ECU back to Unitronic for a refund on the core deposit you made at the time of initial purchase.

ECU Unlock $1000 USD

Core Exchange Deposit $1500 USD

Core returns are required to be received within 30-days or less after receiving the replacement ECU. You will be provided with a pre-paid return label and commercial invoice documents. You are required to ensure the documents are placed properly on the outside of the box and the ECU is received in proper working order, free of any damage internally, externally, and is stock and unmodified. Unitronic reserves the right to refuse any core exchange deposit refunds if it deems the ECU is not in undamaged proper working order at its sole and reasonable discretion. Returns received after 30-days are subject to late fees deducted from the core exchange deposit refund.

Replacement ECU (RECOMMENDED)

This option can be purchased through Unitronic or any Unitronic Authorized Dealer. You will be shipped a replacement ECU that is mostly plug-n-play into your vehicle. You’ll need to do some clearing of fault codes, but otherwise trouble-free. You can freely swap between your original ECU and your Unitronic Tuned Unlocked ECU, so long as you ensure proper hardware modifications are maintained according to the requirements of the ECU currently connected.

ECU Unlock $1000 USD

Replacement ECU $1325 USD

All of these options include an ECU unlock. Core Exchange and Replacement ECU options include an ECU that is ready to be plugged into your 8Y RS3 Unitronic requires you to provide your VIN and some other basic information about you and your vehicle in order to ensure the ECU can be properly prepared to be used in your 8Y RS3. Performance Software is not included in the pricing listed above.

Then, choose your Performance Software Stage / ECU Tune

Stage 1 $1300 USD

Stage 1+ $1400 USD

Stage 2 $1500 USD

Finally you’ll need to choose your Add-Ons:

UniFLEX +$500 USD

Unitronic Advanced Features (UAF) +$250 USD

When purchasing this upgrade, please be prepared to provide Unitronic with the vehicle’s ECU ID, ECU Revision, and VIN to ensure the unit can be properly configured.

AVAILABLE HARDWARE

Unitronic offers a wide range of hardware upgrades that directly support each of its Performance Software tunes for the best possible experience. Drawing on extensive development with previous 8V.2 RS3 and 8S TTRS 2.5TFSI EVO applications — including many record-setting and record-breaking builds — Unitronic’s high-performance hardware for the 8Y RS3 is engineered to deliver maximum power and efficiency in a direct, bolt-on package.

From our tried-and-true 4” Carbon Fiber Intake System to our Performance Downpipe equipped with a GESi 5” G-Sport Ultra High Output UHO+ 400cpsi Catalytic Converter and even our upcoming 4" Turbo Inlet Elbow made specifically for the 8Y RS3, each component is engineered for seamless installation and real-world performance gains. Our popular Intercooler Upgrade keeps intake air temps in-check for both factory and hybrid turbochargers while our Dogbone Mounts help improve traction while eliminating drivetrain slop.

Whether you're chasing lap times or enhancing your daily driver, Unitronic Performance Software and Hardware gives your 8Y RS3 the performance edge it deserves — and we're not done yet. Stage 3 offerings and more are still in the works!

PROVEN RESULTS

Unitronic’s 8Y RS3 Software offerings were developed with an uncompromising focus on real-world performance and reliability. Before public release, our calibrations underwent extensive beta testing with trusted partners and development vehicles across the globe—on the street, track, and dyno. This global validation process allowed us to gather critical data under a wide range of driving conditions, fuel qualities, and elevations to ensure consistent, repeatable performance. The result is Performance Software that delivers exceptional power, drivability and refinement—without compromising reliability.

Join the growing Facebook community of Unitronic Tuned 8Y RS3 enthusiasts HERE.

FLASH FROM HOME

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 after the ECU is unlocked. The cable and associated software allows you to install, and upgrade, your new Unitronic ECU tunes, 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!

APPLICATIONS

2022-2024 Audi RS3 2.5TFSI EVO DXH

SPECIAL NOTES

A BOSCH MG1CS163 ECU can never be reflashed back to stock once unlocked, otherwise the unlock will be overwritten. Replacement ECUs are sold for use exclusively with the vehicle the ECU was purchased for.

*Subject to ECU box code availability.