Got my BMW M4 tuned by BPMSport. Non-Comp Pack, stock everything except for tune + coding.

BPMSport
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Mike@BPMSport re-adjusted the tuning for the burble overrun, and now car has OEM valve controls. Previously my Stage 1 was running / based off of M4 CS/GTS tune, so exhaust starts up loud then immediately goes quiet, and would not open flaps again until after 2+ minutes. Now the valves work like OEM, so starting it in Sport/Sport+ will leave valves open for louder revs.

Much thanks to Mike on all the hard work.

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