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BMS BMW F90 F91 F92 F93 JB4 Tuning Box (M5 & M8)
Ready to take your M5/M8 to the next level?
Our latest tuning kit the F90 //M JB4 takes every thing that is great about the 2018+ all wheel drive F90 platform and amps it up to the next level. Power gains of up to 80whp and 100wtq bring the car to life allowing 1/4 mile potential deep in to the 10s. Unlike other generic tuning devices the JB4 includes full CANbus integration via the OBDII port for advanced tuning, safety features, and diagnostics, as well as electronic wastegate control for superior boost targeting. This is simply the best tuning box available for your //M.
Installation is fully reversible attaching to the TMAP sensors and OBDII port. The included electronic wastegate (EWG) wires are optional and allow the JB4 to take direct control of the wastegates for more precise boost targeting for higher boost maps. Firmware update loaded via JB4 Mobile or a BMS Data Cable will be provided free of charge as we expand the JB4's performance, maps, and features with future development.
JB4 Features and Benefits
- Power gains of up to 80hp and 100tq to the wheels on a stock vehicle
- Quick Plug & Play Installation
- CANbus integration offering unrivaled tuning features and performance
- Runs as smoothly as stock, this is how your M5 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
- Ethanol (E85) compatible tuning maps
- Able to read/delete fault codes
- Not VIN locked, can be removed without a trace and resold down the road
- Made in the USA
- Free USA Shipping
- 5 Year Warranty
Optional JB4 Wireless Mobile Connect Kit or BMS Data Cable
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.
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.
• 2020+ BMW F93 M8 Gran Coupe
2018 F90 M5, All stock with JB4
Burger Motorsports Development F90 BMW M5 0-60 time and 1/4 Mile GPS Times - Recorderd with Dragy
5 Year BMS Repair Warranty
Next Day UK Delivery
Get FREE Guaranteed next day UK delivery for orders over £99 (exc. VAT), excluding larger items and certain remote postal codes/areas. Same day dispatch available if your order is placed before 11:00 GMT on all in stock items!
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 11:00 GMT on all in stock items!