Thread: 2017 M4 CP Cab Stage 1 Tune - BHP results inside!
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      03-25-2020, 05:27 AM   #4
SteveandSasha
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Drives: BMW M4 Competition,
Join Date: Jun 2019
Location: England

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Dynos do vary lots, as much as 20%. Did you get the latest GTS software update, the one that came out this month.
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