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JB4 Tuner for 2018+ Jeep Wrangler & Cherokee 2.0L Turbo

JB4 Tuner for 2018+ Jeep Wrangler & Cherokee 2.0L Turbo

Original price was: $599.00.Current price is: $149.00.
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Power gains of up to 40hp to the wheels on a stock Jeep!

The JB4 is the most advanced and highly featured tuning system for your 2018+ Jeep Wrangler/ Cherokee 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. Now includes the JB4PRO adapter and free app built in!

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 latest JB4 firmware, map guide, support, and discussion are here.

Wirelessly Connect to your JB4:Our all-newJB4 PROsmartphone connection is included to wirelessly connect the JB4 tuner to your Bluetooth 4.0 compatible iOS or Android device. This option allows 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. Our new adapter fits fully inside the JB4 enclosure for enhanced weather protection and a more streamlined look. The JB4PRO Free app features an intuitive easy-to-use interface, help buttons, and advanced log analysis tools that can estimate the performance of your car and help identify any tuning concerns.

For more information about theJB4PRO mobile appclick here.

JB4 Features & Benefits

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

Improves 0-60 and quarter mile times.
Includes multiple tuning maps for different fuel types.
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