Burger Motorsports JB4 tuner, M3/M4 ('15+)

Burger Motorsports JB4 tuner, M3/M4 ('15+)

from 799.00

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. 

Add To Cart

Change your tuning maps on the fly!

2015 S55 engine (M3/M4 vehicles) 100% stock with just the JB4 and an E30 fuel mixture