THIS PRODUCT IS FOR
COMPETITION, CLOSED COURSE USE ONLY
WE ARE UNABLE TO SHIP TO
Ready to take your turbo ///M vehicle to the next level?
The ultimate tune for
your S55 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.
- 2015+ F80 M3
- 2015+ F82 M4
Map 0: Disable JB4 / Full Pass Through Mode Map 1: Stage1 map adding approximately 40whp and 40wtq across the power
band on pump gas. Suitable for all stages and fuel mixtures. Map 2: Slightly more aggressive version of map 1 intended for vehicles
with exhaust modifications and 93+ octane fuel. Can also be used with E85 and
racing fuel mixtures. Map 3: Slightly less aggressive version of map 1 intended for vehicles
running on lower grade fuels such as 91 octane. Map 4: OEM performance but with JB4 active for diagnostics only. Map 5: //M low torque / linear throttle map. Map 6: Custom tuning map. Map 7: Race gas map. Requires 100 octane unleaded fuel and for the fuel
mass connector to be installed. This map can also be used with up to 35% E85. Map 8: Methanol Injection map. Requires BMS FSB controller or methanol
kit for progressive mapping and safety systems.