The JB4 is a plug and play performance tuner that attaches to two easy to access sensors in the engine bay and works with your factory DME tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. It features a 64mhz processor allowing sensors to be sampled 800 times per second using dedicated 10-bit digital to analog converters, ensuring smooth and powerful performance.

JB4 Installation is very discrete and it quickly removes without a trace when needed. Fuel economy during normal driving is unchanged. Compatible with all driving modes. Does NOT require flashing the ECU!

The system is fully CANbus equipped allowing the tuning to take in advanced engine data for mapping, logging, and diagnostics. Data channels include boost, timing, air/fuel, fuel trims, throttle, knock control, and much more! Made in the USA. 5-Year warranty.

Wirelessly connect the JB4 to your Bluetooth 4.0 compatible iOS and Android device via the JB4 Mobile connect kit, or to your Windows laptop with the BMS data cable. Both options allow you to record and analyze vehicle and tuning data, change JB4 performance maps, and update JB4 firmware as we release free newer versions with updates, more powerful maps, and new features under development. A separate JB4 Mobile app purchase is also required.

Features:

• Power gains of up to 50whp and 60wtq to the wheels on a stock vehicle
  
• Improves 0-60 times and 1/4 mile times
  
• Preloaded with custom JB4 Toyota GR Yaris/GR Corolla tuning software and up to 8 maps for various fuel and modification levels
  
• Ethanol (E85) compatible tuning maps
  
• Able to read/delete fault codes
  
• View and record up to 40 gauges/engine parameters in real-time with the JB4 app.
  
• Boost by gear in 1st, 2nd, and 3rd can be controlled via the JB4 app for a perfect launch
  
• Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
  
• The JB4 offers a lot more performance, functionality, and safety than your average performance chip
  
• Quick Plug & Play Installation
  
• CANbus OBDII integration offering unrivaled tuning features and performance
  
• Improved performance over non-integrated chip tunes
  
• Runs as smoothly as stock. This is how your vehicle should have come from the factory
  
• Compatible with all driving modes
  
• Fuel economy unchanged during normal driving
  
• 91 octane fuel or better required for performance gains
  
• Not VIN locked and can be removed without a trace and resold down the road
  
• Includes the rugged JB4 billet aluminum enclosure for protection
  
• Made in the USA
  
• Free Shipping in the USA
  
• 5-year extended warranty

What's Included:

• Burger Motorsports JB4 Tuner
• Bluetooth connector

Vehicle Fitment:

Toyota 

• 2023-Present GR Corolla 1.6T 3 cyl.