JB4 Plug and Play Performance Tuner

The Burger Motorsports N20/N26 BMW JB4 is a plug and play performance tuner engineered to unlock the full potential of your BMW's turbocharged N20 and N26 engines. This sophisticated tuning module installs between your car's sensors and its DME/ECU, intelligently manipulating engine performance to deliver substantial power and torque increases. It offers a direct upgrade path, providing instant power gains with a simple plug and play installation harness that can be completed at home in minutes without specialized tools. Experience significant performance improvements, with gains of up to 50hp and 60ft-lb of torque to the wheels on a stock vehicle, and up to 100hp to the wheels on a modified car. The JB4 supports various tuning maps for different fuel types, including E85 ethanol blends, and enhances traction with its boost-by-gear control. It also integrates seamlessly with the factory systems, running as smoothly as stock and being compatible with all driving modes, while offering improved 0-60 and quarter-mile times. The unit includes a billet aluminum enclosure, is designed and assembled in the USA, and comes with a 5-year warranty. Beyond raw power, the JB4 offers advanced functionality. It can read and delete fault codes, display and log up to 40 engine parameters, and control exhaust flap operation on supported vehicles. For enhanced user experience, it is compatible with the free JB4PRO app, allowing wireless connection via Bluetooth to an iOS or Android device. This app enables users to record and analyze vehicle and tuning data, change performance maps, and update firmware. The JB4 is not VIN-locked, ensuring it can be easily removed, transferred to another vehicle, or resold. Fitment includes a wide range of BMW models equipped with the N20 or N26 2.0L Turbo 4-cylinder engine, specifically: 2 Series (2014-2016 F22 F23 220i, 228i), 3 Series (2012-2016 F30 F31 320i, 328i), 4 Series (2014-2016 F32 F33 420i, 428i), 5 Series (2011-2016 F10 520i, 528i), X Series (2011–2017 F25 X3 xDrive20i, xDrive28i), and E chassis models including the E89 Z4 28i (2013-2016) and E83 X1 28i (2013-2015). Note that some 2014+ models utilize Electronic Wastegates (EWG), while older models (2011-2013) use Pneumatic Wastegates (PWG); selecting the correct version based on your vehicle's wastegate type is crucial.