JB4 S58 G80 G82 - M3 COMPETITION & M4 COMPETITION

Sale price £749.95 Regular price £799.95

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Please allow 7-10 days for delivery 

 

S58 JB4 Tuner for 2021+ BMW M3/M4/M2C BETA

S58 JB4 Tuner for 2021+ BMW M3/M4/M2C BETA

S58 JB4 Tuner for 2021+ BMW M3/M4/M2C BETA

S58 JB4 Tuner for 2021+ BMW M3/M4/M2C BETA

S58 JB4 Tuner for 2021+ BMW M3/M4/M2C BETA

 

Description

Gains are 80whp/100wtq on pump gas and up to 100whp/120wtq on higher octane or E85 mixtures.

The ultimate tune for your S58 powered vehicle, the JB4 allows you to go from factory stock to full race, and everywhere in between, with the push of a button on your steering wheel. The JB4 installs and removes easily and includes many unique features not found in any other tune including user adjustable 1st and 2nd gear boost limiting, map switching in dash, electronic wastegate control, ethanol fuel support, and built in advanced CANbus based diagnostic tools. Installation is completely removable with no splicing or cutting of factory wires.

 

For the latest performance results, updates, firmware, and map guide be sure to visit N54tech.com.

 

Wirelessly connect the JB4 to your Bluetooth 4.0 compatible iOS and Android device via the JB4 Mobile connect kit, or to your Windows laptop with the BMS data cable. Both options allow you to record and analyze vehicle and tuning data, change JB4 performance maps, and update JB4 firmware as we release free newer versions with updates, more powerful maps, and new features under development. Separate JB4 Mobile app purchase also required.

 

 

JB4 Tuner for S55 BMW M3 M4 M2 competition

 

JB4 FEATURES AND BENEFITS

• Gains are 80whp/100wtq on pump gas and up to 100whp/120wtq on higher octane or E85 mixtures.

• Improves 0-60 times and 1/4 mile times

• The JB4 offers a lot more performance, functionality, and safety than your average performance chip

• Quick Plug & Play Installation

• Includes the rugged JB4 billet aluminum enclosure for protection

• CANbus OBDII integration offering unrivaled tuning features and performance

• Improved performance over non-integrated chip tunes

• Runs as smoothly as stock, this is how your vehicle should have come from the factory

• Compatible with all driving modes

• Fuel economy unchanged during normal driving

• Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment

• 91 octane fuel or better required for performance gains

• Ethanol (E85) compatible tuning maps

• Able to read/delete fault codes

• Not VIN locked and can be removed without a trace and resold down the road

• Made in the USA

• 5 year warranty

 

S58 JB4 Applications

 

BMW M3

• 2021+ S58 G80 M3

• 2021+ S58 G80 M3 Competition

 

BMW M4

• 2021+ S58 G82 M4

• 2021+ S58 G82 M4 Competition