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JB4 tuner How to change your map settings on the JB4 wireless BT app.
JB4 App beginners GUIDE!!!! Themes, logs and more!!
JB4 BT Map 4 run data log. How to data log
How to make adjustments to maps JB4
JB4 BT Map 4 run Data log. How to add data on logs.
JB4 how to custom tune
Learn How To Use JB4 Bluetooth Module
How to read your JB4 map and see if it's safe
JB4 Mobile App...Overview, How to Update Firmware, and How to Display on Vehicle Screen
JB4 map 3 with 95 octane 0-60. Pavement a little too damp/dirty!
JB4 In-dash and Bluetooth Map Switching on our BMW E92 335i N54 DCT | The Carbon Connection
JB4 Mobile Firmware Recovery 2021