• BMS MINI B38 B48 B58 JB4 Tuning Box (Cooper S & JCW)
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BMS

BMS MINI B38 B48 B58 JB4 Tuning Box (Cooper S & JCW)

BMS MINI B38 B48 B58 JB4 Tuning Box (Cooper S & JCW)

£420.00 Inc. VAT
£420.00 Inc. VAT
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Price Match Guarantee

If you find a lower price at an eligible US retailer website, we will match it.

Questions about this part?

Our technical advisors can confirm fitment for your vehicle. Contact us with your vehicle details.

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How about up to 40hp to the wheels (50hp crank) on a completely stock B48 on pump gas? 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, boost limiting by gear for improved traction in lower gears, E85 fuel support, progressive water/methanol support, built in data logging, 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.

The latest B38/B48 map guide, feature set, firmware updates, and directions are posted here.

  

  • Power gains of up to 40hp to the wheels on a stock vehicle
  • Improves 0-60 times and 1/4 mile times
  • Preloaded with custom MINI tuning software and up to 8 maps for various fuel and modification levels levels
  • 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
  • Free USA Shipping
  • 5 year warranty

 

  • 2014-2019 MINI Cooper S B38/B46/B48
  • 2015+ F55/F56 JCW
  • 2020+ MINI Cooper S and JCW

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout. 

 

BMS BMW F Chassis B46/B48/B58 JB4 (M140i, 220i, M240i, 320i, 330i, 340i, 420i, 440i & X1 ) Installation Guide - ML Performance UK

 

BMS180 (2014-2019 MINI Cooper S)

BMS181 (2020+ MINI Cooper S & JCW)

 

Manufactured by

Burger Motorsports

 

Warranty

5 Year BMS Repair Warranty

 

BMS MINI B38 B48 B58 JB4 Tuning Box (Cooper S & JCW) - ML Performance UK

 

 

 

  • Price Match Guarantee

    We are committed to giving you the best price. if you find a lower price on the same item at an eligible US retailer website, we will match it.

  • Fast US Delivery

    For in-stock item, get guaranteed fast US delivery. Same day dispatch available on in-stock items if your order is placed before 1pm ET.

  • Worldwide Shipping

    We ship worldwide via DHL International, simply enter your full address at checkout to see the shipping option(s) and quote(s). Same day dispatch available if your order is placed before 1pm ET on all in stock items!