Description
The Burger Tuning JB4 is the most advanced plug-and-play tuner available for the 2022+ Toyota Tundra 3.4L Twin Turbo and Hybrid. Delivering up to +60whp (+75hp crank) on a completely stock truck with pump gas, this tuner unleashes even more performance with bolt-ons, higher octane, E85 mixtures, or upgraded turbos.
Installation is simple with a plug-and-play harness, and the JB4 adds unmatched features including on-the-fly map switching from your in-dash controls, boost-by-gear for traction management, integrated data logging, code reading/clearing, and full CANbus functionality.
Unlike flash tunes, the JB4 is fully removable without leaving a trace, retains factory reliability, and can be your first and only modification for instant, safe performance gains.
Features & Benefits
- Up to +60whp (75hp crank) on stock Tundra
- Significant 0-60 mph and quarter-mile improvements
- Preloaded with 8 custom JB4 maps for different fuels and modifications
- Ethanol (E85) compatible tuning maps
- Boost-by-gear control for perfect launches in lower gears
- Read and delete fault codes directly from the JB4 app
- Real-time monitoring of up to 20 engine parameters
- Optional Tundra Front Active Spoiler Delete add-on for bumper/lift kit installs
- Fully compatible with JB4 Mobile for wireless logging, tuning, and firmware updates
- Quick plug-and-play installation — no cutting or splicing
- CANbus OBDII integration for unmatched accuracy and safety features
- Runs as smoothly as factory tuning while delivering much higher output
- Maintains fuel economy under normal driving conditions
- Requires 91+ octane fuel for peak performance
- Not VIN-locked — transferable or resellable
- Rugged billet aluminum JB4 enclosure for protection
- Designed and assembled in the USA
- 5-year warranty
Vehicle Fitment
- 2022+ Toyota Tundra 3.4L V6 Twin Turbo
- 2022+ Toyota Tundra Hybrid 3.4L V6 Twin Turbo
What is a JB4?
The JB4 is a plug-and-play performance tuner for turbocharged vehicles, installing between your engine’s sensors and ECU/DME. Using advanced CANbus integration, it safely adjusts boost, fueling, and timing to maximize horsepower while preserving daily drivability and reliability.
With free firmware updates, multiple fuel map options, and full removability, the JB4 has been the gold standard in turbo performance tuning for over a decade — often imitated but never duplicated.
