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To answer the thread question, I run ER dp, stock midpipe and AWE axelback and have absolutely 0 drone on the highway. 2900-3200ish rpm will drone but that is all.
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Current: 2021 M340i
Previous: 2020 X3M Comp BM3 E30 & 2016 340i 8AT DME Stage 2 | FBO/Catless Meisterschaft Catback | Ohlins R&T
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