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This tuner supposedly can tune the X4 M40i (detuned M2 engine) to 420hp/390tq and 440hp/420tq
And similar numbers for the M2
Not sure how they know, but dont think anyone really knows until they have dyno'ed it.
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60-130mph 6.5s X4M #HCP
60-130mph 5.0s G80 M3 #OrlandoAutowerks Sauce
IG: @bmwF9XG80
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