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  1. X3 F25 (2011 - 2017)
    Hello- I am new the forum but noticed our X3's are lacking in the mods department. I was very disappointed the JB4 wouldn't work on the F25 after doing research and reaching out to them. the good news is it actually does work but you either need to plug in laptop or use the bluetooth module - I...
  2. X3 F25 (2011 - 2017)
    Hello- I am in a quest for more power in the x3 looking for insight from anyone that has really bumped up the boost. I am going back and fourth between the ESS tune and the regular jb1. I am super bummed the JB4 doesn't work on the f25 n55. I would like to get to 400whp. I was all set to do down...
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