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N55 BMW Performance Tuner
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E Series N55 JB4
Fits 2011+ BMW 135i, 335i, 335ix, N55 X1 and 2013+ 135is N55 "Twin Power" Motors
Finally a JB4 for your N55 "Twin Power" BMW!

BMW Performance Tuners





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.

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

JB4 Optional Startup Gauge Sweep
JB4 BMW Performance Tuner

Click here for the latest JB4 firmware, map guide, and details.
JB4 Optional In Dash
Boost Gauge / Shift Light Demo
JB4 135i 335i Steering Wheel Controls Demo Video

How to tell if you need harness A or B. Click Here for TMAP Location and Photos

E Series N55 JB4



Only $529.00
Not available in California. Worldwide Shipping Available.
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Please Select TMAP Type:

BMW Performance Parts accessories

E Series N55 JB4 w/ BMS USB Cable Combo



Only $559.00
Not available in California. Worldwide Shipping Available.
Estimate Shipping by adding to cart and entering in your ZIP code or country.
Please Select TMAP Type:

BMW Performance Parts accessories

RHD Extension Harness Upgrade. Required for all right hand drive E82 & E90 models. 



Only $30.00
Not available in California. Worldwide Shipping Available.
Estimate Shipping by adding to cart and entering in your ZIP code or country.

BMW Performance Parts accessories

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135 335 N55 Jb4 Intake
BMW N55 135i 335i Performance Intake
N55 Chargepipe N55 Intercooler Clutch Stop BMW Oil Catch Can LED Angel Eyes LED flashlight
BMW Performance Intercooler BMW Performance Intercooler Juicebox 2 BMW Jack Pad Adapter LED angel eyes BMW Clutch Stop
BMW Jack Pad Mini LED Flashlight BMW Wheel Spacers Methanol Injection N55 BMS F10 Intake NEW! BMS Cowl Filters
BMW Jack Pad Adapter BMW led flashlight BMW Paddle Shift Retrofit O2 Sims BMS Single Intake
BMW Performance Chips BMW Intake BMW Performance Parts accessories BMW Performance Parts accessories BMW Performance Parts accessories BMW Performance Parts accessories BMW Performance Parts accessories BMW Performance Parts accessories BMW Performance Parts accessories
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