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Unitronic® Performance ECU Software is NOW AVAILABLE for the ROW 8Y (2022-2024) Audi® RS3® equipped with 2.5TFSI® EVO DNW / DXH engine around the world with UniFLEX (Flex Fuel) and the all-new Unitronic Advance Features (UAF) Add-Ons. With testing and validations completed, power output is increased by up to +168HP / +127LB-FT (+172NM) with Unitronic Stage 2 E85 Performance Software for a maximum of 605HP / 527LB-FT (715NM)*.
Thanks to Unitronic's FeatureBox and all-new UAF Control mobile app, it's now easier than ever for enthusiasts to take control of numerous features while enabling new functions altogether via their mobile phones. Click here to learn more.
Once the ECU is unlocked by Unitronic, users can even tune their vehicles directly through the OBD-2 port within minutes, from the comfort of their own home or garage with UniCONNECT+.
*NOTE: For ROW vehicles equipped with DXHB engines (without OPF), North American power figures can be referenced here.
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 FeatureBox and UAF Control App. Thanks to proprietary ECU code, the Unitronic Advanced Features (UAF) Software Add-On and UAF Control app gives unparalleled levels of control for true adjustability directly from your mobile phone.
The Unitronic FeatureBox or UniFLEX Module act as a bridge between your vehicle and mobile device, seamlessly connecting to the factory soundaktor harness beneath the rain tray to inject a signal directly into the CAN-bus network with its included plug-n-play wiring harness. Paired with the UAF Control app, it puts advanced functionality at your fingertips in an intuitive and user-friendly interface.
Key Highlights
• Adjustable launch control boost levels and RPM set points
• Customizable pops & bangs intensity and duration
• Rolling launch control for on-demand performance
• Exhaust valve behavior settings to suit your preference
• Seamless iOS and Android compatibility
Unitronic has also built in plenty of failsafes and safety mechanisms into its Advanced Features to protect the engine and its components as much as possible. Unitronic has even incorporated refresh timers into its ECU code, utilizing the OEM Virtual Cockpit Torque Gauge to display 15-second countdown before RLC becomes available for reactivation, for example. Additionally, during RLC activation, the torque gauge will show a 5-second countdown during RLC activation before the function times out. Certain preconditions apply for specific functions to activate, while other criteria can also prevent them from engaging. See guide below.
Enabling UAF Functionality
Drive Mode Requirements:
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 $2250 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 (for ROW models) $2050 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
NOTES:When purchasing this upgrade, please be prepared to provide Unitronic with the vehicle’s ECU ID, ECU Revision, VIN and Long Coding to ensure the unit can be properly configured. Pricing can vary between regions. Please contact Unitronic or your local Authorized Dealer for more information.
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 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!
4" INLET FITMENT: PN: UH019-INA is used for DNWC (8Y RoW), DNWD (8Y RoW). PN: UH060-INA is used for DXHB (8Y RoW w/o GPF).
NOTE: The Unitronic 4" Intake and 4" Turbo Inlet are not compatible with RHD vehicles but a Unitronic 3" Intake and 3" Turbo Inlet are available.
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 (ROW) EVO DNW / DXH
2022-2024 Audi RS3 Performance 2.5TFSI (ROW) EVO DNW / 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.
*Unitronic is not affiliated with any vehicle manufacturers. All Manufacturer and vehicle names and trademarks are used in this web site are for identification purposes only. All trademarks and trade dress such as Audi ®, Volkswagen ®, VW ®, Seat ®, Skoda ®, Porsche ®, Lamborghini® GTI ®, Golf ®,Golf R ®, Golf City ®, Alltrack ®, SportWagen ®, Cupra ®, Scirocco ®, Jetta ®, GLI ®, R32 ®, Rabbit ®, Passat ®, Passat CC ®, Tiguan ®, Beetle ®, New Beetle ®, EOS ®, Touareg ®, Phaeton ® DSG ®, S Tronic ®, TSI ®, TFSI ®, VR6 ®, A1 ®, A3 ®, S3 ®, RS3 ®, Q3 ® , A4 ®, S4 ®, RS4 ®, A5 ®, S5 ®,RS5 ® Q5 ®, SQ5 ®, A6 ®, S6 ®, RS6 ®, Q7 ®, SQ7 ®, A7 ®, S7 ®,RS7 ® A8 ®, S8 ®, R8 ®, TT ®, TTS ®, TTRS ®, Boxster ®, 911 ®, 996 ®, 997 ®, 991 ®, Panamera ®, Macan ®, 918 Spyder ®, Cayenne ®, Cayman ®, Huracan ®, Huracan Performante ® are registered trademarks of Volkswagen AG, Audi AG, and Porsche AG.
