Group 5: Polo GTI 6c 192hp/ Audi A3 8V 1.8Tfsi 180hp (Non-US)

  • $ 479.00
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JB1 logo

JB1 Stage 1 Group 5

The JB1 is a true user adjustable plug and play solution for all MQB-based models in the VW Audi Group range. Power Gains: Starting at 30whp and 35ft-lb with 91 octane with + 4.0psi boost over stock on the default setting. Engine estimates are 50bhp gained and 45ft-lb


JB4 Group 5

The JB4 is a true user adjustable plug and play solution for all MQB-based models in the VW Audi Group range. Power Gains: Starting at 45bhp and 40ft-lb with 91 octane/95Ron with + 4.5psi boost over stock on the default setting. Up to 60bhp and 60ft-lb with bolt-on modifications, higher octane, and boost adjustment with the optional BMS Data Cable.

The JB4 features CANbus connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air/fuel ratio, fuel trims, and engine knock, boost mapping by gear for improved traction, integrated water/meth control, and much more.

The unit can be used with our JB4 Bluetooth Connect Kit providing for full in-car engine parameter display, map switching and adjustment Support is also provided for the IS20 turbo upgrade providing for outputs past the 300hp level.

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.

JB4 Features and Benefits

• Improves 0-60 times and 1/4 mile times
• Preloaded with custom 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
• 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


Vehicle Fitment

2014-2018 VW Polo 6C GTI 

2014-2019 Audi A3 8V 1.8T FSI Non-US 
2014-2019 Audi A1 1.8TFSI

2014-2019 Skoda Octavia 1.8T FSI

2014-2019 Seat Leon SC FR 1.8TSI 
2014-2019 Seat Ibiza Cupra 1.8TSI

For any VW/Audi sales, support, and technical questions please contact George at George is the only BMS representative familiar with the VW/Audi platform.JB4 FAQ

Download Install Guide

  • Download JB1 Stage 1 Install Guide

  • Download JB4 Install Guide


    Typical Engine gains on Polo GTI

    Audi 1.8TFSI before and after at the wheels

    Audi 1.8TFSI before and after at the wheels

    Audi JB4 Mobile demo video