Description
The Burger Tuning JB4 is the most advanced plug-and-play tuner for the 2022+ Toyota Land Cruiser LC300 & GR Twin Turbo. Delivering up to +60whp (+75hp crank) on a completely stock SUV with pump gas, the JB4 unlocks even greater gains with bolt-ons, higher octane fuel, E85 mixtures, or upgraded turbos.
With a simple plug-and-play harness, installation is quick and fully reversible. The JB4 offers features no other Land Cruiser tune can match — including on-the-fly map switching from your in-dash controls, boost-by-gear for traction control, built-in data logging, code reading/clearing, and seamless CANbus integration for real-time ECU data.
Unlike flash tunes, the JB4 leaves no footprint, is fully removable, and works perfectly as your first and only performance upgrade for instant, safe power gains.
Features & Benefits
- Up to +60whp (75hp crank) on stock vehicle
- Faster 0–60 mph and quarter-mile acceleration
- 8 preloaded performance maps for various fuels and mods
- Ethanol (E85) compatible tuning maps
- Boost-by-gear control for perfect launches
- Read & clear fault codes directly from the JB4 app
- Monitor up to 20 real-time engine parameters
- Compatible with JB4 Mobile for wireless tuning, logging & firmware updates
- Quick plug-and-play installation — no cutting or splicing
- Advanced CANbus OBDII integration for unparalleled performance and safety
- Retains factory smoothness and daily drivability
- Maintains fuel economy under normal driving
- Requires 91+ octane for optimal gains
- Not VIN-locked — transferable or resellable
- Rugged billet aluminum enclosure for durability
- Designed & made in the USA
- 5-year warranty
Vehicle Fitment
Toyota
- 2022+ Toyota Land Cruiser 3.4L Twin Turbo
- 2022+ Toyota Land Cruiser LC300 GR 3.5L Twin Turbo
What is a JB4?
The JB4 is a plug-and-play performance tuner for turbocharged engines, installed between your engine sensors and ECU/DME. Using advanced CANbus integration, it precisely adjusts boost, fueling, and timing to safely maximize horsepower while retaining stock drivability.
With free firmware updates, multiple fuel map options, and complete removability, the JB4 has been the gold standard in turbo performance tuning for over a decade — unmatched in both features and results.
