JB4 Alfa Romeo Performance Tuner – 2017-2020 Alfa Romeo Guila 2.0T, 2018-2020 Stelvio 2.0T

$735.98

JB4 Bluetooth Wireless Phone/Tablet Connect Kit Rev 3.7 (Pinned Power Wire) - All JB4 Units

Documents

Instructions & Videos

Power gains of up to 40hp to the wheels on a stock vehicle

The JB4 is the most advanced and highly featured tuning system available for your 2017+ Alfa Romeo Giulia or Stelvio 2.0L 4 cylinder Turbo. Power gains are up to 40hp to the wheels (55hp crank) on a completely stock car on pump gas, gains with bolt-on parts, higher octane, and larger turbos are even higher.

The JB4 features a simple plug and play installation harness for easy installation & removal and includes many features not found with any other tune. Including on the fly in dash map switching between factory and various performance maps, boost limiting by gear for improved traction in lower gears, progressive water/methanol support, built-in data logging, built in code reading, and much more.

The JB4 also does not require any user setup or customization but for those who are interested in logging, adding new features as we post them, etc, we suggest the BMS DATA cable or REV3 mobile phone adapter.

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.

JB4 FEATURES AND BENEFITS

• Power gains of up to 40hp to the wheels on a stock vehicle
• Quick Plug & Play Installation
• CANbus integration offering unrivaled tuning features and performance
• Runs as smoothly as stock, this is how your Alfa Romeo 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
• Ethanol (E85) compatible tuning maps
• Able to read/delete fault codes
• Not VIN locked can be removed without a trace and resold down the road
• Made in the USA
• Free USA Shipping
• 5-year warranty

Additional information

Weight1 kg
Dimensions30 × 20 × 10 cm
Connection Method

None, BMS Data Cable, JB4 Wireless Mobile Smart Phone Kit

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Applications

Models suitable for this product

MakeModelYearSubmodel
MakeModelYearSubmodel
Alfa RomeoGiulia2017 - 2018Base 2.0L
Alfa RomeoGiulia2017 - 2018Base 2.0L AWD
Alfa RomeoGiulia2017 - 2018Ti 2.0L
Alfa RomeoGiulia2017 - 2018Ti 2.0L AWD
Alfa RomeoGiulia2018Sport 2.0L
Alfa RomeoGiulia2018Sport 2.0L AWD
Alfa RomeoGiulia2018Ti Lusso 2.0L
Alfa RomeoGiulia2018Ti Lusso 2.0L AWD
Alfa RomeoGiulia2018Ti Sport 2.0L
Alfa RomeoGiulia2018Ti Sport 2.0L AWD
Alfa RomeoGiulia2019 - 2020Base - 2.0L Turbo
Alfa RomeoGiulia2019 - 2020Base - 2.0L Turbo AWD
Alfa RomeoGiulia2019 - 2020Sport - 2.0L Turbo
Alfa RomeoGiulia2019 - 2020Sport - 2.0L Turbo AWD
Alfa RomeoGiulia2019 - 2020Ti - 2.0L Turbo
Alfa RomeoGiulia2019 - 2020Ti - 2.0L Turbo AWD
Alfa RomeoGiulia2019 - 2020Ti Lusso - 2.0L Turbo
Alfa RomeoGiulia2019 - 2020Ti Lusso - 2.0L Turbo AWD
Alfa RomeoGiulia2019 - 2020Ti Sport - 2.0L Turbo
Alfa RomeoGiulia2019 - 2020Ti Sport - 2.0L Turbo AWD
Alfa RomeoGiulia2019 - 2020Ti Sport Carbon - 2.0L Turbo
Alfa RomeoGiulia2019 - 2020Ti Sport Carbon - 2.0L Turbo AWD
Alfa RomeoStelvio2018Base 2.0L AWD
Alfa RomeoStelvio2018Sport 2.0L AWD
Alfa RomeoStelvio2018Ti 2.0L AWD
Alfa RomeoStelvio2018Ti Sport 2.0L AWD
Alfa RomeoStelvio2019 - 2020Base - 2.0L Turbo AWD
Alfa RomeoStelvio2019 - 2020Sport - 2.0L Turbo AWD
Alfa RomeoStelvio2019 - 2020Ti - 2.0L Turbo AWD
Alfa RomeoStelvio2019 - 2020Ti Lusso - 2.0L Turbo AWD
Alfa RomeoStelvio2019 - 2020Ti Sport - 2.0L Turbo AWD
Alfa RomeoStelvio2020Ti Sport Carbon - 2.0L Turbo AWD

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