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Terry @ BMS Terry @ BMS is offline
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Default 09-14-2021, 12:47 PM

Interesting, thanks for the feedback. Will follow up via email.

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Home of the JB4 the worlds most popular turbocharged tuning system!

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f90_agus_f80 f90_agus_f80 is offline
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Join Date: Sep 2021
Car: Bmw m5 f90 lci
Default 09-18-2021, 09:03 AM

hello people, i'm new here, i just installed the jb4 in my bmw m5 f90 2020. i have it with ********* and intakes, what mix do you recommend to run map 5? I already tried map 3 with e20 and it improved a lot. with the firmware in the app it says that I have the 24/9 // 5, should I update it? sorry for so many questions😂 thank🙏🏻
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