A slight harmonic hmmm/whine is definitely normal with anything like this. The stock transmission mounts soak up tons of feel, noise, and vibrations.
That rubber boot is so tough! Forgot about that part
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2015 F80 M3 DCT, Carbon Roof
1998 S54 E36 M3 BMWCCA Club Racing #532 CM
1995 E36 M3 Sunbelt S52
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