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BMS JB+ F Series Performance Tuner | BMW N55, N20, N26

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1 Year MFG
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Product Details

Finally our popular and well proven JB+ quick install tuner is available for N20, N26, and N55 applications! Boost is user adjustable up to 4psi over stock providing gains up to 25 wheel horsepower and 35 wheel torque on the N20/N26 motor and up to 35 wheel horsepower and 45 wheel torque on the N55 motor. Timing and fueling remains managed seamlessly by the DME preserving all factory safety systems.

While the JB4 is the ultimate tuning tool the JB+ is a quick and simple way to add a few HP with minimal cost and minimal install effort. Something that anyone can buy, install in under a minute, and really feel from the drivers seat. Compared to our Stage1 tune it offers a lower cost and easier install but lacks the additional benefits of MAP sensor control and data logging. Depending on the settings and conditions expect a little less horsepower than the Stage1 all else being equal.

Fuel economy during normal driving is unchanged. Compatible with both pneumatic and electronic wastegate vehicles and all driving modes. Automatically detects the engine type upon installation allowing the same unit to be used for any F series N20, N26, or N55 application! Not available for sale/use within California.

For those who want to start with the JB+ and upgrade to the higher power more advanced JB4 tune we offer a 100% trade up credit. To qualify simply purchase the JB4 system from our website directly and then after receipt mail back the JB+ along with its purchase receipt from BMS or any authorized reseller and we'll issue a $199 refund against your JB4 purchase. Offer is valid up to one year after purchasing the JB+.



N55 Fitment Guide

BMW 1 Series

  • 2013+ N55 BMW F20 F21 M135

BMW 2 Series

  • 2014+ N55 BMW F22/F23 M235i

BMW 3 Series

  • 2012+ N55 BMW F30 F31 335i/xi
  • 2013+ N55 BMW F34 335i xDrive GT

BMW 4 Series

  • 2014+ F32 F33 F36 Coupe 435i / 435xi

BMW 5 Series

  • 2012+ F07 535i GT
  • 2012+ F10 F11 535i / 535xi

BMW 6 Series

  • 2011+ F13 640 Coupe
  • 2011+ F12 640 Convertible
  • 2012+ F06 640 Gran Coupe

BMW X Series

  • 2013+ X1 N55 TwinPower
  • 2012+ X3 X5 X6 N55 TwinPower

N20, N26 Fitment Guide

BMW 2 Series

  • 2014+ 2 Series F22/F23 220i / 228i N20 & N26

BMW 3 Series

  • 22012+ 3 Series F30 320i / 328i N20 & N26

BMW 4 Series

  • 2014+ 4 Series F32/F33/F36 420 / 428 N20 & N26

BMW 5 Series

  • 2011+ 5 Series F10 520 / 528 N20 & N26

BMW X Series

  • 2014+ E84 X1
  • 2013+ X3 F25
  • 2017 BMW X4 M40i

BMW Z Series

  • 2012 Z4 28i

Installation Information

Installation Time

(approx) 5-10 Minutes

Difficulty Level

Simple installation for anyone

Installation Guides

How to Install

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