Description
The Burger Tuning JB4 Tuner for the BMW 4.4L S68 engine delivers gains of up to 100whp on pump gas and as much as 207whp on higher octane or E85 mixtures. Whether you drive a BMW 7 Series M60e, X5 M60i, or ALPINA XB7, the JB4 transforms your stock vehicle into a high-performance machine with plug-and-play installation and no permanent ECU changes.
The JB4 is packed with exclusive features such as user-adjustable boost-by-gear, electronic wastegate control, E85 fuel support, and built-in CANbus diagnostics. Installation requires no cutting or splicing, and the system is fully removable, making it a safe and reversible upgrade for your S68 BMW.
Features & Benefits
- Gains of 100whp on pump gas, up to 207whp on E85 or race fuel
- Faster 0–60mph and 1/4 mile acceleration
- 8 preloaded maps for different fuels and modifications
- Ethanol (E85) compatible tuning
- Read and delete diagnostic fault codes
- Monitor and log up to 40 engine parameters via the JB4 app
- Adjustable boost-by-gear for 1st, 2nd, and 3rd gears
- Smartphone integration for logging, tuning, and map changes
- Advanced CANbus OBDII integration for precise tuning control
- Maintains factory-like drivability in all driving modes
- Fuel economy unchanged during normal use
- Works best with 91 octane or higher
- Not VIN-locked – remove and resell any time
- Rugged billet aluminum enclosure for durability
- Made in the USA with a 5-year warranty
Vehicle Fitment
BMW 7 Series
- 2023+ G70 BMW 7 Series M60e 4.4L
- 2024+ G70 BMW 7 Series M760i 4.4L
BMW X6
-
2024+ G06 BMW X6 M60i 4.4L
BMW X5
-
2024+ G05 BMW X5 M60i 4.4L
BMW X7
- 2023+ G07 BMW X7 M60i 4.4L
- 2023+ G07 ALPINA XB7 4.4L
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 safely increases performance by adjusting boost, fueling, and timing. Unlike basic piggyback systems, the JB4 uses advanced CANbus integration, fuel and spark control, and real-time data processing to deliver smooth, factory-like drivability with massive power gains.
With free firmware updates, multiple map options, and easy removal, the JB4 has been the industry benchmark in performance tuning for over a decade.
