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      09-21-2020, 07:42 PM   #1
E90 M335i
Second Lieutenant

Drives: E90 335i Msport
Join Date: Sep 2014
Location: Winnipeg, Mb Canada

iTrader: (0)

JB4+backend flash

Hi everyone. I have a 14' M6 runing a stage 2 BM3 tune and had a great experience running JB4 on previous cars. Love the features the JB4 gives and the ability to data log and have the monitors so easily. So i was wondering if anybody here is running it with a backend flash and how do they like it (compared to BM3 or other tunes)? If so who's done the backend flash for you?

Thank you for any ideas!
Appreciate 0
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