Did you ask for special program?
As Heinz mentions 400/580nm...or was it just more after they tuned it?
Is it also noticeably quicker?
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M40i aftermarket exhaust
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raven
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M40i aftermarket exhaust
400/580nm is their default tune for the engine, the numbers change a little for each car, and I think the modifications to the exhaust might be the reason why its higher. They adjusted it so its optimized for E5 Fuel instead of e5 and e10, i'm not sure if they always do that.
In my opinion the difference is huge, you definatly get pulled back in to the seat more when accelerating.
2019 BMW Z4 G29 M40i @600hp - IG: ZZZZ_M40i