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 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. Separate JB4 Mobile app purchase also required.

Power gains of up to 30whp and 40wtq to the wheels on a stock vehicle without the risks associated with flashing!

You may also wish to add the Data Cable or the Bluetooth Connect Kit for additional features.

• Power gains of up to 30whp and 40wtq to the wheels on a stock vehicle
  
• Improves 0-60 times and 1/4 mile times
  
• Preloaded with custom Yaris tuning software and up to 8 maps for various fuel and modification levels• The JB4 offers a lot more performance, functionality, and safety than your average performance chip
  
• Quick Plug & Play Installation
  
• Includes the rugged JB4 billet aluminum enclosure for protection
  
• 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
  
• Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
  
• 91 octane fuel or better required for performance gains
  
• Ethanol (E85) compatible tuning maps
  
• Able to read/delete fault codes
  
• Not VIN locked and can be removed without a trace and resold down the road
  
• Made in the USA
  
• Free USA Shipping
  
• 5 year warranty

JB4 Toyota Yaris Map Guide

• Map 0: Disables JB4 all together
• Map 1: +3.5 psi, default map. Suggested for 91+ octane.
• Map 2: +4.0 psi, 91-93 octane
• Map 3: +4.5 psi, 93+ octane
• Map 4: +5.0 psi, 30% E85
• Map 5: +6.0 psi, 30% E85 or race gas
• Map 6: User Adjustable Custom Tuning Map
• Map 7: +9.0 psi, 30% E85 or race gas, full send mode!
• Map 8: VALET/Low Boost Map

Toyota Yaris GR 1.6 (2020+)

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout. 

BMS186

Manufactured by

Burger Motorsports

Warranty

5 Year BMS Repair Warranty