Requires existing Unitronic ECU Software. A Unitronic representative will contact you after purchase to finalize your UAF Software Add-On.
Description
Take control of your driving experience with the Unitronic FeatureBox and UAF Control App designed for the latest VW® and Audi® performance vehicles. Featuring expertly calibrated Software and Bluetooth-ready hardware, this powerful combination delivers true on-the-fly adjustability—directly from your smartphone.
With seamless integration between the FeatureBox and the UAF Control mobile app (available for iOS and Android), 8Y RS3®, MK8 GTI® / Golf R®, and 8Y S3® enthusiasts can fine-tune numerous performance features in seconds while also enabling new functions altogether.
Instantly adjust launch control boost and RPM set points, manage advanced traction control parameters, enable rolling launch control, customize pops & bangs, set exhaust flap behavior and more.
The Unitronic Advanced Feature suite redefines what’s possible, giving enthusiasts a smarter, more flexible way to personalize their vehicles. Click here to learn more.
Software Add-On Required: A $250 UAF Software Add-On is required in order to enable Unitronic Advanced Features on top of your base Unitronic Performance Software. Contact Unitronic or your preferred Authorized Dealer for more information.
With seamless integration between the FeatureBox and the UAF Control mobile app (available for iOS and Android), 8Y RS3®, MK8 GTI® / Golf R®, and 8Y S3® enthusiasts can fine-tune numerous performance features in seconds while also enabling new functions altogether.
Instantly adjust launch control boost and RPM set points, manage advanced traction control parameters, enable rolling launch control, customize pops & bangs, set exhaust flap behavior and more.
The Unitronic Advanced Feature suite redefines what’s possible, giving enthusiasts a smarter, more flexible way to personalize their vehicles. Click here to learn more.
Software Add-On Required: A $250 UAF Software Add-On is required in order to enable Unitronic Advanced Features on top of your base Unitronic Performance Software. Contact Unitronic or your preferred Authorized Dealer for more information.
Features / Benefits
- Direct CAN-bus integration
- Plug-n-play harness – no cutting, splicing, or ECM re-pinning
- Bluetooth® connectivity with UAF Control App (iOS/Android)
- Adjust launch control boost levels and RPM set points
- Advanced traction control management (2.0TSI® EVO4)
- Pops & bangs intensity and duration customization
- Rolling launch control for on-demand performance
- Exhaust valve behavior settings
- No-lift-shift (NLS) and standing launch control (6MT vehicles)
- Over-the-air (OTA) updates
Hardware Included
- Unitronic FeatureBox
- Plug-n-play wiring harness
Required Software
- UAF Software Add-On ($250)
- Contact Unitronic or your preferred Authorized Dealer to upgrade today
Related Hardware
- Unitronic UniFLEX Hardware Kit (w/ sensor) for 2.0TSI EVO4 and 8Y RS3 2.5TFSI
- Unitronic UniFLEX Hardware Kit for 2.0TSI EVO4 and 8Y RS3 2.5TFSI
Seamless Connectivity & Control

The Unitronic FeatureBox acts 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.

Install
Unitronic’s FeatureBox contains all the necessary components which allow 8Y RS3, MK8 GTI / Golf R, and 8Y S3 customers to utilize Unitronic's new Advanced Feature Add-On. Installs in minutes with the included plug-n-play harness.
Unitronic UAF Control App is available for download on the App Store and Google Play
Unitronic UAF Control App is available for download on the App Store and Google Play