BMS Burger Motorsports JB4 Tuning Box for BMW M5 & M8 (F90 F91 F92 F93, S63 Twin Turbo V8) - Plug & Play Piggyback ECU, CANbus, JB4 Mobile, Up to +80bhp

JB4 Power Module for BMW M5 and M8, F90 F91 F92 F93

Transform the way your S63 twin turbo V8 delivers power with the Burger Motorsports JB4 power module. This easy to install add-on controller unlocks serious performance while retaining smooth factory manners, giving your M5 or M8 the extra punch you want without permanent changes. Expect gains of up to 80 bhp and 100 lb ft at the wheels on a standard car, sharper throttle response, smart boost control via CAN integration, and full access to live data and map switching through the optional smartphone interface.

Key benefits

• Up to 80 bhp and 100 lb ft at the wheels on a stock vehicle, strong midrange and top-end pull
• True plug-in installation, no coding, no cutting, remove any time and return to stock in minutes
• CANbus connected for advanced safety, adaptive boost control and OEM-like drivability
• Works seamlessly with factory drive modes and safety systems
• Fuel economy unchanged in normal driving, power on demand when you want it
• Compatible with the JB4 Mobile app for data logging, live gauges and on-the-fly map changes
• Ethanol blend friendly maps where available for higher octane performance
• Read and clear diagnostic trouble codes directly in the interface
• Not VIN locked, fully transferable and resellable
• Made in the USA with a 5-year Burger Motorsports repair warranty

Why enthusiasts choose this upgrade

Looking for a remap alternative for your BMW M5 or M8 that delivers real world speed, reliability and flexibility? This JB4 tuning controller is the proven solution UK owners trust for F90 M5 and F91 F92 F93 M8. It is ideal for drivers searching phrases like BMW M5 power module, M8 performance upgrade, S63TU boost controller, stage 1 style tuner, F90 performance chip, F92 mapping alternative and M5 Competition tuning device. It keeps factory refinement while adding the punch your bi-turbo V8 deserves.

We have run this unit on our own cars and on customer vehicles, and the feedback has been consistently excellent for performance, drivability and reliability. Smooth, strong and predictable power with OEM-like integration.

How it works

The JB4 is a sophisticated piggyback controller that interfaces with your vehicle’s CAN system to precisely adjust boost, timing and fuel targets. Multiple preconfigured maps match different fuel qualities and hardware setups, including ethanol blends where suitable. With the optional JB4 Mobile app, you can switch maps on the fly, monitor parameters, log runs and clear codes from your phone.

Vehicle compatibility

• 2018+ BMW F90 M5 and M5 Competition
• 2020+ BMW F91 M8 Convertible
• 2020+ BMW F92 M8 Coupe
• 2020+ BMW F93 M8 Gran Coupe

Engine: S63 twin turbo V8. Perfect for searches such as M5 Competition power upgrade, M8 Gran Coupe tuning module, F90 boost controller, S63TU tuning box, BMW V8 bi-turbo performance module and JB4 app UK.

Fitting and support

Installation is straightforward thanks to the plug-in harness and factory-style connectors. Prefer professional installation or a health check and setup? Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Part number

BMS037

Warranty

5-year Burger Motorsports repair warranty for peace of mind.

Images and performance logs

Real-world testing and Dragy-verified results from Burger Motorsports demonstrate the JB4’s performance potential on the F90 M5 and S63 platform.

Search-friendly terms

BMW M5 power module UK, BMW M8 power module UK, F90 performance tuner, F92 tuning device, S63TU boost controller, BMW V8 bi-turbo tuner, M5 Competition upgrade, M8 Competition upgrade, stage 1 alternative, plug-in ECU controller, JB4 app, map switching, data logging, code reader, performance chip, ethanol map support, removable tuner, UK BMW tuning specialist, Warwickshire BMW tuning.