JB4 Replacement and Upgrade Chips a220 Full-Pen Welds: Precision welding ensures

Full-Pen Welds: Precision welding ensures maximum strength and durability of the exhaust

an intake system worthy of your N55 TwinPower motor

• Change user adjustment/methanol settings

With most of our popular performance air intake systems we offer two high quality filter options in our cone filters

Factory BMW Pump:

JB4 Replacement and Upgrade Chips a220 Full-Pen Welds: Precision welding ensuresJB4 Replacement and Upgrade Chips The replaceable 2580 master chip controls the communications between the JB4 and your BMS data cable or JB4 Smart Phone Wireless Connect Kit as well as the model specific firmware. If you are unable to connect to the JB4 try replacing this first as often it's the culprit. Specify which firmware you need in the drop down so the chip works out of the box with your model. To install it just open the hood, lock the doors,