Thread: 2020 M340 vs 2021?
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      04-22-2021, 08:19 AM   #26
madpistol
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Drives: 2022 BMW M440i GC
Join Date: Mar 2021
Location: Florida, USA

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I wonder what would be required to add the crackles/pops back into the 2021 M340i. Is it the exhaust system? ECU? Both?
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