JB4 Beta

The JB4 is a true user adjustable plug and play solution for all N54 based models in the BMW Group range. Power Gains: Starting at 45bhp and 45ft lb with 91 octane over stock on the default setting. Up to 100bhp with bolt on modifications, higher octane and boost adjustment with the optional BMS Data Cable.

The JB4 BETA features CANBUS connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air/fuel ratio, fuel trims, and engine knock, boost mapping by gear for improved traction, integrated water/meth control, and much more.

The unit can be used with our JB4 Bluetooth Connect kit providing for full in car engine parameter display, map switching and adjustment.

This kit works on the following series:

• Up to 2013 Series 1 - N55 w/ Pneumatic Wastegate
• Up to 2013 Series 2 - N55 w/ Pneumatic Wastegate
• Up to 2013 Series 3 - N55 w/ Pneumatic Wastegate
• Up to 2013 Series 4 - N55 w/ Pneumatic Wastegate

Add the JB4 Smart Phone Wireless Connect Kit