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Jb4 BMW BMW 335 Performance Jb4 135 335 intakes
N55 BMW Performance Tuner
E Series N55 JB4
BMW Tuner JB4 E chassis N55 Performance upgrade

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 DATA cable allows you to connect via a laptop for data logging and free software updates.

N55 JB4 Dyno Results


JB4 Only


JB4, Exhaust, E85 Fuel


JB4, Exhaust, Hybrid Turbo, E85 Fuel






Applications:

BMW 1 Series
• 2011-2013 N55 BMW E82 E88 135i LHD

BMW 3 Series
• 2011+ N55 BMW E90 E91 E92 E93 335i/ix

BMW X Series
• 2011+ N55 BMW X1

F Chassis N55 JB4 - Click Here
Optional JB4 Phone Software
JB4 Optional Startup Gauge Sweep
JB4 Optional In Dash
Boost Gauge / Shift Light Demo
JB4 135i 335i Steering Wheel Controls
Demo Video

Click here for the latest JB4 firmware, map guide, and details.
E Series N55 JB4

$529.00
Not available in California. Worldwide Shipping Available.
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Optional BMS Data Cable for diagnostics and updates

$35.00
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JB4 N54 bmw performance parts tuners chips
Optional JB4 Smart Phone Wireless REV3 for diagnostics and updates

$140.00
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JB4 N54 bmw performance parts tuners chips
RHD Extension Harness Upgrade. Required for all right hand drive E82 & E90 models. 

$30.00
Not available in California. Worldwide Shipping Available.
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By purchasing this item you agree to the Terms and Conditions.

 
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More Information
Download Installation Guides
Download Burger Motorsports / JB4 Logos
BMW / Mini Chassis Codes
Terms & Conditions
Emissions Info
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