Description
The Burger Tuning Group 17 JB4 is the ultimate plug-and-play performance tuner for VW EA888 Gen4 engines found in the MK8 GTI and other Audi Group models with electric assist. Designed for seamless installation and maximum flexibility, the JB4 connects directly to your vehicle’s sensors and CANbus system for precise, real-time tuning.
With power gains starting at +50bhp/+55ft-lb on 91 octane (95RON) and up to +65hp/+65ft-lb on 93 octane (98RON), the JB4 delivers sharper throttle response, reduced turbo lag, and stronger acceleration — all while maintaining factory-like smoothness and drivability.
Advanced features like boost-by-gear mapping, direct AFR control, integrated water/meth control, and enhanced engine safety systems put it ahead of traditional chip tunes. Pair it with the optional JB4 Bluetooth Connect Kit for in-car map switching, logging, and customization through your iOS® or Android® device.
JB4 Features & Benefits
- Power gains: +50bhp / +55ft-lb (91 octane), +65hp / +65ft-lb (93 octane)
- Faster 0–60 mph and 1/4 mile times
- Preloaded with up to 8 custom maps for different fuel grades & mods
- Ethanol (E85) compatible tuning maps
- Boost-by-gear control for optimal traction
- Reads & clears fault codes via JB4 app
- CANbus OBDII integration for advanced tuning data and safety
- Plug & Play installation – fully reversible
- Runs as smoothly as stock in all driving modes
- Compatible with JB4 Mobile for logging, map changes, and adjustments
- Fuel economy unchanged during normal driving
- 91+ octane required for performance gains
- Not VIN-locked – resell or move to another vehicle
- Rugged billet aluminum enclosure
- Made in the USA – 5-year warranty
Vehicle Fitment
Volkswagen
- 2024+ VW Atlas
- 2021+ VW MK8 GTI
Škoda
-
2021+ vRS 180kW / 245hp
Audi
-
2021+ Audi A3 201hp
What is a JB4?
The JB4 is a plug & play performance tuner for turbocharged vehicles. Installed between your car’s sensors and ECU, it fine-tunes boost, fuel, and timing for maximum power gains while keeping the factory ECU intact. Unlike basic two-sensor piggybacks, the JB4 uses CANbus data, direct fuel and spark control, and Bluetooth app integration for unrivaled adjustability and safety. It’s fully removable, not VIN-locked, and regularly updated with free firmware and map upgrades from Burger Motorsports.
