JB4 Replacement and Upgrade Chips a220 *To reach the advertised performance

*To reach the advertised performance of these fuel pumps

• 2012-2017 S63TU F10 M5

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

Basic kit is compatible with all E chassis and F chassis BMW N54 & N55 engines

JB4 Replacement and Upgrade Chips a220 *To reach the advertised performanceJB4 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,