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10-29-2017, 07:17 AM | #1 |
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N63tu 2014 550xi- JB4
So I heard people buying the M5 JB4 and then get the correct firmware from Burger for the N63tu , also the M5 BCM too. Has anyone else done this?
I saw a guy on YouTube with just that and an exhaust and ran 11.6 1/4 mile. |
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