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Alfa Romeo JB4
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Applications:


• 2017+ Alfa Romeo Giulia 2.0L 4 cylinder Turbo
• 2017+ Alfa Romeo Stelvio 2.0L 4 cylinder Turbo

Ready to take it to the next level?
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. Currently CANbus is not active but will be unlocked via  free firmware update once we've finalized it.

For install guide, map guide, and the latest firmware click here.
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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
 
 
Alfa Romeo JB4

$479.00 + Free Shipping in USA
$529.00

Worldwide Shipping Available.
Estimate Shipping by adding to cart and entering in your ZIP code or country.
 
Optional JB4 Wireless Mobile Connect Kit or BMS Data Cable
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.

Starting at $35.00

Worldwide Shipping Available.
Estimate Shipping by adding to cart and entering in your ZIP code or country.
JB4 Wireless Mobile Connect Kit
JB4 N54 bmw performance parts tuners chips
BMS DATA CABLE

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