My N63 & N63TU forum friends across diff boards over 1 year with RaceChip and higher settings with 0 issues!
Smoothest power delivery from their test of other piggybacks
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60-130 6.5s X4M
60-130 5.04s G80 M3 Stock Turbo
60-130 4.82s | 9.4@148mph 1/4 Hybrids
IG: @bmwF9XG80
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