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Burger Tuning N20/N26 BMW JB4

$529.00
Weight:
1.00 LBS
Shipping:
Calculated at Checkout
Burger Tuning N20/N26 BMW JB4

Description

BMW N20/N26 JB4 Tuner – Ultimate Plug-and-Play Power Upgrade for 2.0L Turbo Models

Transform the performance of your BMW N20 or N26 engine with the JB4 Performance Tuner, the most advanced plug-and-play tuning system available for BMW’s 2.0L turbocharged platform. Engineered for drivers who demand both power and refinement, the JB4 delivers dramatic improvements in horsepower, torque, acceleration, drivability, and overall responsiveness—without compromising factory reliability or safety protocols.

On a stock vehicle, the JB4 provides gains of up to 50whp and 60wtq, significantly improving 0–60 mph times and quarter-mile performance. Featuring full CANbus OBDII integration, the JB4 constantly monitors real-time engine data and dynamically adjusts boost, timing, fuel trims, and other key parameters to ensure smooth, consistent, and safe power delivery across all driving conditions.

Advanced Mapping & Tuning Flexibility

The JB4 arrives preloaded with up to 8 performance maps, each optimized for different fuel types and modification levels. From completely stock setups to vehicles running full bolt-ons or ethanol blends, the JB4 automatically adapts to extract maximum performance.

Key tuning features include:

  • Ethanol (E85) compatible maps

  • Boost-by-gear control for optimal traction in 1st–3rd gear

  • Real-time engine gauge monitoring (up to 40 parameters) via the FREE JB4PRO app

  • Instant map switching

  • Fault code reading and clearing

  • Bluetooth-enabled smartphone tuning (via JB4PRO app)

This level of control allows you to tailor your BMW’s performance to your exact needs—street, track, or daily driving.

Engineered for Smooth, OEM-Like Operation

Even with significant gains in power, the JB4 maintains factory drivability. It runs seamlessly in all BMW driving modes, keeps fuel economy unchanged during normal cruising, and provides smooth, predictable throttle response. The JB4 is fully reversible and not VIN-locked, making removal fast and trace-free if the car needs to return to stock or if you want to resell the tuner later.

Included is the rugged billet aluminum JB4 enclosure, ensuring long-term durability and protection in demanding environments.

Designed and assembled in the USA, the JB4 also includes a 5-year extended warranty for complete peace of mind.

JB4 Features & Benefits

  • Gains of up to 50whp / 60wtq on a stock N20/N26

  • Faster 0–60 mph and ¼-mile times

  • Up to 8 custom performance maps included

  • Full E85/ethanol map compatibility

  • Read and delete engine fault codes

  • Monitor & record 40+ live engine parameters via JB4PRO app

  • Boost-by-gear control (1st–3rd gear)

  • Free JB4PRO app for tuning adjustments & data logging

  • Superior performance, safety, and features vs. standard piggyback chips

  • Quick plug-and-play installation

  • Deep CANbus OBDII integration

  • Smoother-than-stock drivability

  • Works with all OEM driving modes

  • No impact on fuel economy under normal driving

  • Requires 91+ octane for maximum power

  • Fully removable, not VIN-locked

  • Includes billet aluminum JB4 enclosure

  • Designed & assembled in the USA

  • 5-year extended warranty

Vehicle Fitment

BMW 2 Series

  • 2014–2016 F22 / F23 – 220i, 228i (N20/N26, electronic wastegate)

BMW 3 Series

  • 2012–2016 F30 / F31 – 320i, 328i (N20/N26)

BMW 4 Series

  • 2014–2016 F32 / F33 – 420i, 428i (N20/N26, electronic wastegate)

BMW 5 Series

  • 2011–2016 F10 – 520i, 528i (N20/N26)

BMW X Series

  • 2011–2017 F25 X3 – xDrive20i, xDrive28i (2.0L N20/N26)

E-Chassis X1 & Z4

  • 2013–2016 E89 Z4 28i (N20/N26)

  • 2013–2015 E83 X1 28i incl. xDrive (N20/N26)

What Is the JB4?

The JB4 is a next-generation plug-and-play performance tuner for turbocharged vehicles. It installs between the engine sensors and the DME/ECU, optimizing performance by altering boost, timing, fuel, and other parameters in real time. Unlike basic piggyback systems, the JB4 features:

  • CANbus integration

  • Fuel & spark control

  • Bluetooth smartphone access

  • Adaptive real-time tuning

  • Free firmware & mapping updates

The system is fully reversible, not VIN-locked, and trusted by enthusiasts worldwide for over a decade.

Is the JB4 a Real Tune?

Yes. The JB4 provides tuning capabilities comparable to an ECU flash by modifying critical parameters such as boost pressure, ignition timing, AFR, and fuel trims using real-time CANbus data. The difference is that the JB4 does this without unlocking or permanently altering your ECU, keeping factory safety systems intact and leaving no trace once removed.