Instant power with easy plug & play installationReady to take your BMW N20 turbo to the next level? How about up to 50hp to the wheels (65hp crank) on a completely stock car or up to 100hp to the wheels (120hp crank) on a fully modified car? The JB4 features a simple plug and play installation harness for easy installation and includes many features not found on any other tune. Including the ability to enable/disable the tuning from the driver's seat, gear-dependent boost control to help with traction, E85 compatibility, built-in diagnostic code reading/deleting, expanded engine safety systems, free firmware updates, in dash boost gauge, the ability to control the exhaust flapper using your BC button, and much more.The JB4 does not require any additional modifications or previous stages. Simply install the JB4 as your first and only modification and enjoy an entirely new fast and smooth racing experience. For more advanced enthusiasts, the BMS DATA or JB4 Mobile cable allows you to connect a laptop or smartphone for additional gauges, data logging, and free firmware updates as we add new features and maps. Also, note some F10 and X chassis models require a JB4PRO bluetooth adapter to select options bit?1 in the FREE JB4PRO app to enable the in-dash controls for those models. The JB4 is a full plug and play device that installs and removes in minutes at home without special tools and unlike flash maps that permanently write over your DME with the JB4 your DME is never aware it's running more than the factory power levels. And when you're ready to change things up the JB4 is not VIN locked and can be moved to your next vehicle or resold. Wirelessly Connect to your JB4: Our all-new JB4 PRO smartphone 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 the JB4PRO mobile app click here. JB4 Features & Benefits • Power gains of up to 50whp and 60wtq to the wheels on a stock vehicle• Improves 0-60 and quarter mile times.• Includes multiple tuning maps for different fuel types.• Quick plug and play installation.• Supports E85 ethanol blends.• Reads and deletes fault codes.• Displays and logs up to 40 engine parameters.• Boost by gear control for improved traction.• Controls exhaust flap operation on supported vehicles.• Compatible with the free JB4PRO app.• Offers better performance and safety than basic chip tunes.• Full CANbus integration.• Runs as smoothly as stock.• Compatible with all driving modes.• No impact on fuel economy during normal driving.• Requires 91 octane or better for performance gains.• Not VIN locked and fully removable.• Includes billet aluminum enclosure.• Designed and assembled in the USA.• 5-year warranty. Vehicle Fitment2 Series• 2014-2016 BMW 2 Series F22 F23 220i 228i N20 & N26 2.0L TURBO 4 CYL - all vehicles select (EWG) Electronic Wastegate version3 Series• 2012-2016 BMW 3 Series F30 F31 320i 328i N20 & N26 2.0L TURBO 4 CYL4 Series• 2014-2016 BMW 4 Series F32 F33 420i 428i N20 & N26 2.0L TURBO 4 CYL - all vehicles select (EWG) Electronic Wastegate version5 Series• 2011-2016 BMW 5 Series F10 520i 528i N20 & N26 2.0L TURBO 4 CYLX Series• 2011–2017 F25 BMW X3 xDrive20i, xDrive28i 2.0L TURBO 4 CYLE chassis X1 and Z4 • 2013-2016 E89 BMW Z4 28i 2.0L TURBO 4 CYL - select E Series X1 & Z4 in dropdown• 2013-2015 E83 BMW X1 28i including xDrive 2.0L TURBO 4 CYL - select E Series X1 & Z4 in dropdownWastegate Identification Chart. Pneumatic (PWG) or Electronic (EWG)?What is a JB4?The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and its DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster. While it's not the only tuning system that operates this way, the JB4 separates itself from the competition with much more advanced connection points and processing including CANbus, fuel & spark control, Bluetooth to your smartphone, and a variety of innovative and advanced features not possible with any other system. BMS regularly publishes free mapping and firmware updates adding performance and features as ongoing development allows. In addition, the JB4 system is not VIN-locked to your vehicle and can quickly be removed and swapped between cars or resold at a later time. Often imitated but never duplicated, the JB4 has been the gold standard in plug and play turbocharged performance tuning for over a decade.Is the JB4 a real tune?Yes the JB4 is a real tune. By tapping into specific sensors and CANbus for real time vehicle data the JB4 is able to alter your boost, timing, AFR, and/or fuel trims, to a similar degree an ECU reflash would, but without the vehicle ever knowing its been tuned. The result is safe, smooth, and significant power and torque gains while retaining your factory safety systems and without having to unlock/flag your ECU. DYNO RESULTSBMW 328i on pump gas dynoBMW 320 JB4 dynoBMW 328 E85 dyno VIDEO
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