Description
Experience incredible power gains with the Burger Tuning JB4 Group 9 Tuner for the 2017+ Audi RS3 and TTRS. Delivering up to 100whp and 100wtq, this easy-to-install, plug & play tuner works alongside your factory ECU to remap boost, timing, and fueling for optimized performance and reduced turbo lag.
The JB4 includes full SENT sensor technology needed for the latest Audi platforms and full CANbus integration, allowing advanced tuning strategies and unique safety features. The tuner adjusts boost pressure based on engine oil and coolant temperature and protects your engine by reducing boost if overheating, knocking, or lean conditions occur. Ethanol fuel control ensures precise tuning with E85 or other ethanol blends.
Compatible with the JB4 Mobile app, the JB4 lets you change maps, log data, update firmware, and more right from your smartphone. Installation is discreet and completely removable without trace, keeping your vehicle fuel efficient during normal driving and fully compatible with all factory driving modes.
JB4 Features & Benefits
- Gains up to 100whp and 100wtq on stock vehicles
- Improves 0-60 mph acceleration and 1/4 mile times
- Preloaded with custom Audi tuning software and up to 8 performance maps for various fuels and mods
- Advanced CANbus OBDII integration for superior tuning and safety
- Compatible with all factory driving modes
- Maintains fuel economy during normal driving
- Plug & Play installation—no cutting or splicing required
- Runs as smoothly as factory stock for reliable drivability
- Ethanol (E85) compatible maps included
- Reads and clears fault codes
- Compatible with JB4 Mobile for wireless tuning, logging, and updates
- Requires 91 octane fuel or better for optimal performance
- Not VIN locked — easily removable and transferable
- Made in the USA with a 5-year warranty
Vehicle Fitment
Compatible and tested worldwide on all market versions and model years:
- Audi RS3 8Y2 Facelift (2025+)
- Audi RS3 8Y (2022-2024)
- Audi RS3 8V2 (2017+)
- Audi TTRS 8S (2018+)
What is a JB4?
The JB4 is a premium plug & play tuner that intercepts sensor signals between your vehicle’s engine and ECU to safely increase power. Featuring CANbus integration, smartphone Bluetooth control, and constant firmware updates, the JB4 is the gold standard for Audi turbocharged tuning. Fully reversible and not VIN locked, it can be transferred or resold easily.
