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BM3 results will be very interesting. I went from RaceChip GTS Black to BM3 on my X5M and the drive ability was significantly better and a more linear power delivery. It's a full remap instead of just changing the perceived boost pressure seen by the ECU (tmap I think).
I did about 620 to the wheels on my first dyno run on RaceChip, then could only get mid 500s each run right after on the same dyno trip. I call it the one hit wonder.
Racechip is a very good product, I just wanted something better.
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2017 X5M, Donnington Grey, Aragon Brown
Eisenmann Pro, Dinan Intake, BM3 Stage 1, XHP Stage 3
21" Vossen VFS-1 on Michelin PSS
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