Description
The Burger Tuning JB4 Tuner for 2021+ Mercedes-Benz E-Class, GLE53 AMG, and 2020+ AMG GT43/GT53 delivers gains from 50 to 100 horsepower depending on fuel type and tuning level. This plug-and-play tuner connects to easily accessible sensors in your engine bay and works with your factory ECU to optimize boost, timing, and fueling for maximum performance while maintaining factory smoothness.
Unlike flash tunes, the JB4 can be fully removed without a trace, leaving your factory ECU unchanged. It features advanced CANbus integration for real-time monitoring of critical data like pedal position, timing advance, AFR, knock, and more. Multiple performance maps, including 91/93 octane, E85 mixtures, and race fuel options, allow you to tailor your driving experience.
Features & Benefits
- Gains of 50–100hp depending on fuel and map settings
- Faster 0–60mph and 1/4 mile times
- Preloaded with custom Mercedes-Benz JB4 tuning software and up to 8 maps
- Ethanol (E85) compatible maps
- Read and delete fault codes from the JB4 app
- View and log up to 40 engine parameters in real-time
- Adjustable boost-by-gear for improved launches
- Smartphone connectivity for logging, map changes, and updates
- Quick plug-and-play installation – no ECU opening or permanent changes
- CANbus OBDII integration for precision tuning and diagnostics
- Runs smoothly in all driving modes with stock-like drivability
- Fuel economy unchanged during normal driving
- Works best with 91 octane or higher fuel
- Not VIN-locked – transferable and removable without a trace
- Rugged billet aluminum JB4 enclosure for durability
- Made in the USA with a 5-year warranty
Vehicle Fitment
E-Class
- 2021+ Mercedes-Benz E450
- 2021+ Mercedes-Benz E580
- 2021+ Mercedes-Benz E53 AMG
GLE
-
2021+ Mercedes-Benz GLE53 AMG
AMG GT
- 2020+ AMG GT43
- 2020+ AMG GT53
What is a JB4?
The JB4 is a plug-and-play performance tuner for turbocharged vehicles. Installed between your vehicle’s sensors and ECU, it adjusts boost, fueling, and timing to deliver massive gains without sacrificing reliability. Unlike basic piggyback systems, the JB4 uses CANbus integration and advanced data processing to deliver smooth, consistent power.
With free firmware updates, multiple maps, E85 compatibility, and easy removal, the JB4 has been the industry benchmark in performance tuning for over a decade.
