My personal experience with a couple of intakes for the F10 M showed repeatable gains during the years that I had it up until I had a complete re-map and tune. Then the numbers were up there.
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2021 M340i
2020 X3 M40i - her car
2019 M5, AW, DP's, MSR CAI, BM3, SOLD
2020 Chev. ZR2 Bison truck, Daily Driver
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