Ready to take your BMW N55 turbo to the next level?
How about up to 60hp to the wheels (80hp 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 on the fly in dash map switching between factory and various performance maps, optional in dash gauge displays for boost and other critical engine parameters, progressive water/methanol support, ethanol fuels support, built in code reading, and much more.
Remember 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. The JB4 also does not require any user setup or customization but for more advanced enthusiasts the BMS USB cable allows you to connect via a laptop for data logging and free software updates.
Due to DME compatibility issues we do not offer and have no plans to develop an N55 JB4 tune for the X3, X5, or X6. The most powerful tune you can use for these models is our N55 Stage1.
JB4 support for the F10 & F30 is limited and does not yet include in dash features. Follow along on N54Tech for the most current updates.
N55 JB4, exhaust, Methanol Kit
BMW 1 Series
• 2011+ N55 BMW E82 135i LHD
• 2013+ N55 BMW F20 1M LHD
BMW 2 Series
• 2014+ N55 BMW F22/F23 M235i
BMW 3 Series
• 2011+ N55 BMW E90 E91 E92 E93 335i/ix
• 2012+ N55 BMW F30 F31 335i/ix
BMW 4 Series
• 2014+ F32 Coupe 435i / 435ix
BMW 5 Series
• 2011+ N55 BMW F10 F11 535i/ix
• 2010+ N55 BMW F07 535i/ix GT
BMW 6 Series
• 2011+ N55 BMW F12 F13 640i/ix
• 2011+ N55 BMW F06 640i/ix Gran Coupe
JB4 Optional In Dash
Boost Gauge / Shift Light Demo
JB4 135i 335i Steering Wheel Controls Demo Video
Note: Type B has a protruding clip while Type A has a smooth clip. Please double check BEFORE ordering and if you can not positively identify your sensor email us a photo so we can identify it for you.